ENGLISH TEST FOR GRADE 12(§¸p ¸n)
I. Pick out the word whose underlined part is pronounced differently from that of the others
1. A. supposed B. collected C. admired D. posed
2. A. quiet B. activity C. title D. quite
3. A. butter B. put C. sugar D. push
4. A. few B. new C. threw D. knew
5. A. pretty B. get C. send D. well
II. Choose the most suitable word or phrase (a, b , c, or d ) to complete each sentence
6. The children, parents work late, are taken home by bus.
A. that B. whom C. whose D. their
7.……the weather was fine , we postponed the flight to Bahamas .
A.Because B.Because of C.Although D.In spite of
8. John’s grades are_____________than his sister’s.
A. higher B. more high C. more higher D. the highest
9.This is the first time Thomas …… to Vietnam .
A.came B.is coming C.has come D.will have come
10.The reason …… he didn’t pass the exam is his laziness.
A.which B.that C.when D.why
11.The …… we study , the more prizes we receive.
A.better B.best C.worse D.worst
12.He is used …… up late to watch live football programs on TV .
A.to stay B.to staying C.stay D.staying
13. If he …… more money, he would have bought that car .
A.has B.has had C.had D.had had
14.The newspaper is a mean of …….
A.communicate B.communication C.communicative D.communicatively
15. He spent a lot of money……his new car.
A.to B. for C. on D. by
16 .The acronym of WTO comes from ___________.
A. World Trade Organization. B. World Trading Organize.
C. World Trade Organize. D. World of Trade for Organizer

17. My daughter plays _____ piano very well.
A. the B. a C. an D. x
18. Have you finished …… the letter?.
A.write B.to write C.writing D.to writing
19. We _____ for three hours and are very tired.
A. are walking B. have been walking C. were walking D. had been walking
20.English is spoken in many countries all ___ the world.
A. in B. over C. at D. from
III.Choose the underlined part among a, b ,c ,or d that needs correcting
21 .The headmaster of our school have been very busy since he returned from Hanoi.
A B C D
22 .A friend of mine used to smoking a lot when he was young.
A B C D
23. Each students has answered the first three questions.
A B C D
24 The man whom helped you yesterday is a television reporter.
A B C D
25. Living in the city is more comfortably than in the country.
A B C D
IV. Read the passage and then choose the correct answers
It is said that mathematics is the base of all other sciences, and that arithmetic, the science of
numbers, is the base of mathematics. Numbers consist of whole numbers (integers) that are formed by the
digits 0, 1, 2, 3, 4, 5, 6, 7, 8, and 9 and by the combinations of them. For example, 247 — two hundred and
forty seven — is a number formed by three digits. Parts of numbers smaller than 1 are sometimes
expressed in terms of fraction, but in scientific usage they are given as decimals. This is because it is
easier to perform the various mathematical operations if decimals are used instead of fractions. The main
operations are: to add, subtract, multiply and divide; to square, cube, or raise to any other power; to take a
square, cube, or any other root, and to find a ratio or proportion between pairs of numbers or a series of
numbers. Thus, the decimal, or ten-scale, system is used for scientific purposes throughout the world,
even in countries whose national systems of weights and measurements are based upon other scales. The

other scale in general use nowadays is the binary, or two-scale, in which numbers are expressed by
combinations of only two digits, 0 and 1. Thus, in the binary scale, 2 is expressed as 010, 3 is given as Oh,
4 is represented as 100, etc. This scale is perfectly adapted to the “off-on” pulse of electricity, so it is
widely used in electronic computers. Because of its simplicity it is often called “the lazy schoolboy’s
dream.”!
26. The main topic of the text is about _____
A. numbers B. mathematics C. arithmetic D. binary
27. Numbers which are smaller than integers are scientifically shown as ___
A. digits B. scales C. cubes D. decimals
28. According to the passage, mathematical operations include:
A. to add, subtract, multiply and divide
B. to square, cube, or raise to any other power
C. to take a square, cube, or any other root, and to find a ratio
or proportion between pairs of numbers or a series of numbers
D. All are correct
29. The binary is a system _____
A. in which mathematics is the base of all other sciences
B. in which numbers are expressed by combinations of only two digits, O and 1
C. in which whole numbers are formed by the digits 0,1,2,3,4,5,6,7, 8 and 9
and by the combinations of them
D. that every lazy schoolboy uses
30 What can be referred from the phrase “the lazy schoolboy’s dream”?
A. Electronic computers make mathematic operations easier for schoolboys.
B. Lazy schoolboys dream of having an electronic computers.
C. Using electronic computers make schoolboys lazy and sleepy.
D. All are correct
ENGLISH TEST FOR GRADE 12 ( M· §Ò 01)
I. Pick out the word whose underlined part is pronounced differently from that of the others
1. A. supposed B. collected C. admired D. posed
2. A. quiet B. activity C. title D. quite

3. A. butter B. put C. sugar D. push
4. A. few B. new C. threw D. knew
5. A. pretty B. get C. send D. well
II. Choose the most suitable word or phrase (a, b , c, or d ) to complete each sentence
6. The children, parents work late, are taken home by bus.
A. that B. whom C. whose D. their
7.……the weather was fine , we postponed the flight to Bahamas .
A.Because B.Because of C.Although D.In spite of
8. John’s grades are_____________than his sister’s.
A. higher B. more high C. more higher D. the highest
9.This is the first time Thomas …… to Vietnam .
A.came B.is coming C.has come D.will have come
10.The reason …… he didn’t pass the exam is his laziness.
A.which B.that C.when D.why
11.The …… we study , the more prizes we receive.
A.better B.best C.worse D.worst
12.He is used …… up late to watch live football programs on TV .
A.to stay B.to staying C.stay D.staying
13. If he …… more money, he would have bought that car .
A.has B.has had C.had D.had had
14.The newspaper is a mean of …….
A.communicate B.communication C.communicative D.communicatively
15. He spent a lot of money……his new car.
A.to B. for C. on D. by
16 .The acronym of WTO comes from ___________.
A. World Trade Organization. B. World Trading Organize.
C. World Trade Organize. D. World of Trade for Organizer
17. My daughter plays _____ piano very well.
A. the B. a C. an D. x
18. Have you finished …… the letter?.

A.write B.to write C.writing D.to writing
19. We _____ for three hours and are very tired.
A. are walking B. have been walking C. were walking D. had been walking
20.English is spoken in many countries all ___ the world.
A. in B. over C. at D. from
III.Choose the underlined part among a, b ,c ,or d that needs correcting
21 .The headmaster of our school have been very busy since he returned from Hanoi.
A B C D
22 .A friend of mine used to smoking a lot when he was young.
A B C D
23. Each students has answered the first three questions.
A B C D
24 The man whom helped you yesterday is a television reporter.
A B C D
25. Living in the city is more comfortably than in the country.
A B C D
IV. Read the passage and then choose the correct answers
It is said that mathematics is the base of all other sciences, and that arithmetic, the science of
numbers, is the base of mathematics. Numbers consist of whole numbers (integers) that are formed by the
digits 0, 1, 2, 3, 4, 5, 6, 7, 8, and 9 and by the combinations of them. For example, 247 — two hundred and
forty seven — is a number formed by three digits. Parts of numbers smaller than 1 are sometimes
expressed in terms of fraction, but in scientific usage they are given as decimals. This is because it is
easier to perform the various mathematical operations if decimals are used instead of fractions. The main
operations are: to add, subtract, multiply and divide; to square, cube, or raise to any other power; to take a
square, cube, or any other root, and to find a ratio or proportion between pairs of numbers or a series of
numbers. Thus, the decimal, or ten-scale, system is used for scientific purposes throughout the world,
even in countries whose national systems of weights and measurements are based upon other scales. The
other scale in general use nowadays is the binary, or two-scale, in which numbers are expressed by
combinations of only two digits, 0 and 1. Thus, in the binary scale, 2 is expressed as 010, 3 is given as Oh,
4 is represented as 100, etc. This scale is perfectly adapted to the “off-on” pulse of electricity, so it is

widely used in electronic computers. Because of its simplicity it is often called “the lazy schoolboy’s
dream.”!
26. The main topic of the text is about _____
A. numbers B. mathematics C. arithmetic D. binary
27. Numbers which are smaller than integers are scientifically shown as ___
A. digits B. scales C. cubes D. decimals
28. According to the passage, mathematical operations include:
A. to add, subtract, multiply and divide
B. to square, cube, or raise to any other power
C. to take a square, cube, or any other root, and to find a ratio
or proportion between pairs of numbers or a series of numbers
D. All are correct
29. The binary is a system _____
A. in which mathematics is the base of all other sciences
B. in which numbers are expressed by combinations of only two digits, O and 1
C. in which whole numbers are formed by the digits 0,1,2,3,4,5,6,7, 8 and 9
and by the combinations of them
D. that every lazy schoolboy uses
30 What can be referred from the phrase “the lazy schoolboy’s dream”?
A. Electronic computers make mathematic operations easier for schoolboys.
B. Lazy schoolboys dream of having an electronic computers.
C. Using electronic computers make schoolboys lazy and sleepy.
D. All are correct
***********************************************************************************
**&*******&********&**
ENGLISH TEST FOR GRADE 12(M· §Ò 02)
I Choose the underlined part among a, b ,c ,or d that needs correcting
1 . Each students has answered the first three questions.
A B C D
2 .A friend of mine used to smoking a lot when he was young.

A B C D
3. The headmaster of our school have been very busy since he returned from Hanoi.
A B C D
4 Living in the city is more comfortably than in the country.
A B C D
5. The man whom helped you yesterday is a television reporter.
A B C D
II. Choose the most suitable word or phrase (a, b , c, or d ) to complete each sentence
6. English is spoken in many countries all ___ the world.
A. in B. at C. over D. from
7.……the weather was fine , we postponed the flight to Bahamas .
A.Because B. In spite of C.Although D. Because of
8. John’s grades are_____________than his sister’s.
A. higher B. more high C. more higher D. the highest
9. The newspaper is a mean of …….
A.communicate B. communicative C. communication D.communicatively
10.The reason …… he didn’t pass the exam is his laziness.
A.which B.that C.when D.why
11.The …… we study , the more prizes we receive.
A.better B.best C.worse D.worst
12.He is used …… up late to watch live football programs on TV .
A.to stay B.to staying C.stay D.staying
13. The acronym of WTO comes from ___________.
A. World Trade Organization. B. World Trading Organize.
C. World Trade Organize. D. World of Trade for Organizer
14. This is the first time Thomas …… to Vietnam .
A.came B.is coming C.has come D.will have come
15. He spent a lot of money……his new car.
A.to B. for C. on D. by
16 . If he …… more money, he would have bought that car .

A.has B.has had C.had D.had had
17. My daughter plays _____ piano very well.
A. the B. a C. an D. x
18. Have you finished …… the letter?.
A.write B.to write C.writing D.to writing
19. We _____ for three hours and are very tired.
A. are walking B. have been walking C. were walking D. had been walking
20. The children, parents work late, are taken home by bus.
A. that B. whom C. whose D. their

III. . Pick out the word whose underlined part is pronounced differently from that of the others
21. A. quiet B. activity C. title D. quite
22. A. butter B. sugar C. put D. push
23. A. pretty B. get C. send D. well
24. A. supposed B. admired C. collected D. posed
25. A. few B. new C. threw D. knew
IV. Read the passage and then choose the correct answers
It is said that mathematics is the base of all other sciences, and that arithmetic, the science of
numbers, is the base of mathematics. Numbers consist of whole numbers (integers) that are formed by the
digits 0, 1, 2, 3, 4, 5, 6, 7, 8, and 9 and by the combinations of them. For example, 247 — two hundred and
forty seven — is a number formed by three digits. Parts of numbers smaller than 1 are sometimes
expressed in terms of fraction, but in scientific usage they are given as decimals. This is because it is
easier to perform the various mathematical operations if decimals are used instead of fractions. The main
operations are: to add, subtract, multiply and divide; to square, cube, or raise to any other power; to take a
square, cube, or any other root, and to find a ratio or proportion between pairs of numbers or a series of
numbers. Thus, the decimal, or ten-scale, system is used for scientific purposes throughout the world,
even in countries whose national systems of weights and measurements are based upon other scales. The
other scale in general use nowadays is the binary, or two-scale, in which numbers are expressed by
combinations of only two digits, 0 and 1. Thus, in the binary scale, 2 is expressed as 010, 3 is given as Oh,
4 is represented as 100, etc. This scale is perfectly adapted to the “off-on” pulse of electricity, so it is

widely used in electronic computers. Because of its simplicity it is often called “the lazy schoolboy’s
dream.”!
26. Numbers which are smaller than integers are scientifically shown as ___
A. decimals B. scales C. cubes D. digits
27. According to the passage, mathematical operations include:
A. to take a square, cube, or any other root, and to find a ratio
or proportion between pairs of numbers or a series of numbers
B. to square, cube, or raise to any other power
C. to add, subtract, multiply and divide
D. All are correct
28. The binary is a system _____
A. in which mathematics is the base of all other sciences
B. in which numbers are expressed by combinations of only two digits, O and 1
C. in which whole numbers are formed by the digits 0,1,2,3,4,5,6,7, 8 and 9
and by the combinations of them
D. that every lazy schoolboy uses
29. What can be referred from the phrase “the lazy schoolboy’s dream”?
A. Electronic computers make mathematic operations easier for schoolboys.
B. Lazy schoolboys dream of having an electronic computers.
C. Using electronic computers make schoolboys lazy and sleepy.
D. All are correct
30. The main topic of the text is about _____
A. numbers B. mathematics C. arithmetic D. binary
***********************************************************************************
**&*******&********&**
ENGLISH TEST FOR GRADE 12(M· §Ò 03)
I. Choose the most suitable word or phrase (a, b , c, or d ) to complete each sentence
1 . Have you finished …… the letter?.
A.write B.to write C.writing D.to writing
2 .The reason …… he didn’t pass the exam is his laziness.

A.which B.that C.when D.why
3. He spent a lot of money……his new car.
A.to B. for C. on D. by
4.This is the first time Thomas …… to Vietnam .
A.came B.is coming C.has come D.will have come
5. .……the weather was fine , we postponed the flight to Bahamas .
A.Because B.Because of C.Although D.In spite of
6. We _____ for three hours and are very tired.
A. are walking B. have been walking C. were walking D. had been walking
7.He is used …… up late to watch live football programs on TV .
A.to stay B.to staying C.stay D.staying
8. If he …… more money, he would have bought that car .
A.has B.has had C.had D.had had
9.The newspaper is a mean of …….
A.communicate B.communication C.communicative D.communicatively
10. John’s grades are_____________than his sister’s.
A. higher B. more high C. more higher D. the highest
11 .The acronym of WTO comes from ___________.
A. World Trade Organization. B. World Trading Organize.
C. World Trade Organize. D. World of Trade for Organizer
12. My daughter plays _____ piano very well.
A. the B. a C. an D. x
13. The children, parents work late, are taken home by bus.
A. that B. whom C. whose D. their
14. The …… we study , the more prizes we receive.
A.better B.best C.worse D.worst
15.English is spoken in many countries all ___ the world.
A. in B. over C. at D. from
II.Pick out the word whose underlined part is pronounced differently from that of the others
16. A. collected B. supposed C. admired D. posed

17. A. few B. new C. threw D. knew
18. A. quiet B. activity C. title D. quite
19. A. well B. get C. send D. pretty
20. A. butter B. put C. sugar D. push
III.Choose the underlined part among a, b ,c ,or d that needs correcting
21 . The man whom helped you yesterday is a television reporter.
A B C D
22 . The headmaster of our school have been very busy since he returned from Hanoi.
A B C D
23. Each students has answered the first three questions.
A B C D
24 Living in the city is more comfortably than in the country.
A B C D
25. A friend of mine used to smoking a lot when he was young.
A B C D
IV. Read the passage and then choose the correct answers
It is said that mathematics is the base of all other sciences, and that arithmetic, the science of
numbers, is the base of mathematics. Numbers consist of whole numbers (integers) that are formed by the
digits 0, 1, 2, 3, 4, 5, 6, 7, 8, and 9 and by the combinations of them. For example, 247 — two hundred and
forty seven — is a number formed by three digits. Parts of numbers smaller than 1 are sometimes
expressed in terms of fraction, but in scientific usage they are given as decimals. This is because it is
easier to perform the various mathematical operations if decimals are used instead of fractions. The main
operations are: to add, subtract, multiply and divide; to square, cube, or raise to any other power; to take a
square, cube, or any other root, and to find a ratio or proportion between pairs of numbers or a series of
numbers. Thus, the decimal, or ten-scale, system is used for scientific purposes throughout the world,
even in countries whose national systems of weights and measurements are based upon other scales. The
other scale in general use nowadays is the binary, or two-scale, in which numbers are expressed by
combinations of only two digits, 0 and 1. Thus, in the binary scale, 2 is expressed as 010, 3 is given as Oh,
4 is represented as 100, etc. This scale is perfectly adapted to the “off-on” pulse of electricity, so it is
widely used in electronic computers. Because of its simplicity it is often called “the lazy schoolboy’s

dream.”!
26. The main topic of the text is about _____
A. mathematics B. numbers C. binary D. arithmetic
27. The binary is a system _____
A. in which whole numbers are formed by the digits 0,1,2,3,4,5,6,7, 8 and 9
and by the combinations of them
B. in which numbers are expressed by combinations of only two digits, O and 1
C. in which mathematics is the base of all other sciences
D. that every lazy schoolboy uses
28. According to the passage, mathematical operations include:
A. to add, subtract, multiply and divide
B. to square, cube, or raise to any other power
C. to take a square, cube, or any other root, and to find a ratio
or proportion between pairs of numbers or a series of numbers
D. All are correct
29. Numbers which are smaller than integers are scientifically shown as ___
A. digits B. scales C. cubes D. decimals
30. What can be referred from the phrase “the lazy schoolboy’s dream”?
A. Lazy schoolboys dream of having an electronic computers .
B. Electronic computers make mathematic operations easier for schoolboys.
C. Using electronic computers make schoolboys lazy and sleepy.
D. All are correct
***********************************************************************************
**&*******&********&**
ENGLISH TEST FOR GRADE 12(M· §Ò 04)
I. Read the passage and then choose the correct answers
It is said that mathematics is the base of all other sciences, and that arithmetic, the science of
numbers, is the base of mathematics. Numbers consist of whole numbers (integers) that are formed by the
digits 0, 1, 2, 3, 4, 5, 6, 7, 8, and 9 and by the combinations of them. For example, 247 — two hundred and
forty seven — is a number formed by three digits. Parts of numbers smaller than 1 are sometimes

expressed in terms of fraction, but in scientific usage they are given as decimals. This is because it is
easier to perform the various mathematical operations if decimals are used instead of fractions. The main
operations are: to add, subtract, multiply and divide; to square, cube, or raise to any other power; to take a
square, cube, or any other root, and to find a ratio or proportion between pairs of numbers or a series of
numbers. Thus, the decimal, or ten-scale, system is used for scientific purposes throughout the world,
even in countries whose national systems of weights and measurements are based upon other scales. The
other scale in general use nowadays is the binary, or two-scale, in which numbers are expressed by
combinations of only two digits, 0 and 1. Thus, in the binary scale, 2 is expressed as 010, 3 is given as Oh,
4 is represented as 100, etc. This scale is perfectly adapted to the “off-on” pulse of electricity, so it is
widely used in electronic computers. Because of its simplicity it is often called “the lazy schoolboy’s
dream.”!
1. According to the passage, mathematical operations include:
A. to square, cube, or raise to any other power
B. to add, subtract, multiply and divide
C. to take a square, cube, or any other root, and to find a ratio
or proportion between pairs of numbers or a series of numbers
D. All are correct
2.Numbers which are smaller than integers are scientifically shown as ___
A. decimals B. scales C. cubes D. digits
3. The binary is a system _____
A. that every lazy schoolboy uses
B. in which numbers are expressed by combinations of only two digits, O and 1
C. in which whole numbers are formed by the digits 0,1,2,3,4,5,6,7, 8 and 9
and by the combinations of them
D. in which mathematics is the base of all other sciences
4. The main topic of the text is about _____
A. numbers B. mathematics C. arithmetic D. binary
5. What can be referred from the phrase “the lazy schoolboy’s dream”?
A. Electronic computers make mathematic operations easier for schoolboys.
B. Lazy schoolboys dream of having an electronic computers.

C. Using electronic computers make schoolboys lazy and sleepy.
D. All are correct
II. Pick out the word whose underlined part is pronounced differently from that of the others
6. A. quiet B. activity C. title D. quite
7. A. few B. new C. threw D. knew
8. A. supposed B. collected C. admired D. posed
9. A. butter B. put C. sugar D. push
10. A. pretty B. get C. send D. well
III. Choose the most suitable word or phrase (a, b , c, or d ) to complete each sentence
11. John’s grades are_____________than his sister’s.
A. more high B. higher C. more higher D. the highest
12.The reason …… he didn’t pass the exam is his laziness.
A.which B. why C.when D. that
13. The children, parents work late, are taken home by bus.
A. that B. whom C. their D. whose
14.……the weather was fine , we postponed the flight to Bahamas .
A.Because B.Because of C.Although D.In spite of
15.The …… we study , the more prizes we receive.
A.better B.best C.worse D.worst
16. We _____ for three hours and are very tired.
A. are walking B. have been walking C. were walking D. had been walking
17.English is spoken in many countries all ___ the world.
A. in B. over C. at D. from
18.He is used …… up late to watch live football programs on TV .
A.to stay B.to staying C.stay D.staying
19. If he …… more money, he would have bought that car .
A.has B.has had C.had D.had had
20.The newspaper is a mean of …….
A.communicate B.communication C.communicative D.communicatively
21.This is the first time Thomas …… to Vietnam .

A.came B.is coming C.has come D.will have come
22. He spent a lot of money……his new car.
A.to B. for C. on D. by
23 .The acronym of WTO comes from ___________.
A. World Trade Organization. B. World Trading Organize.
C. World Trade Organize. D. World of Trade for Organizer
24. My daughter plays _____ piano very well.
A. the B. a C. an D. x
25. Have you finished …… the letter?.
A.write B.to write C.writing D.to writing
IV. Choose the underlined part among a, b ,c ,or d that needs correcting
26 The man whom helped you yesterday is a television reporter.
A B C D
27 .A friend of mine used to smoking a lot when he was young.
A B C D
28 .The headmaster of our school have been very busy since he returned from Hanoi.
A B C D
29. Living in the city is more comfortably than in the country.
A B C D
30. Each students has answered the first three questions.
A B C D
***********************************************************************************
**&*******&********&**
ENGLISH TEST FOR GRADE 12(M· §Ò 02)
I. Pick out the word whose underlined part is pronounced differently from that of the others
1. A. supposed B. collected C. admired D. posed
2. A. quiet B. activity C. title D. quite
3. A. butter B. put C. sugar D. push
4. A. few B. new C. threw D. knew
5. A. pretty B. get C. send D. well

II. Choose the most suitable word or phrase (a, b , c, or d ) to complete each sentence
6. The children, parents work late, are taken home by bus.
A. that B. whom C. whose D. their
7.……the weather was fine , we postponed the flight to Bahamas .
A.Because B.Because of C.Although D.In spite of
8. John’s grades are_____________than his sister’s.
A. higher B. more high C. more higher D. the highest
9.This is the first time Thomas …… to Vietnam .
A.came B.is coming C.has come D.will have come
10.The reason …… he didn’t pass the exam is his laziness.
A.which B.that C.when D.why
11.The …… we study , the more prizes we receive.
A.better B.best C.worse D.worst
12.He is used …… up late to watch live football programs on TV .
A.to stay B.to staying C.stay D.staying
13. If he …… more money, he would have bought that car .
A.has B.has had C.had D.had had
14.The newspaper is a means of …….
A.communicate B.communication C.communicative D.communicatively
15. He spent a lot of money……his new car.
A.to B. for C. on D. by
16 .The acronym of WTO comes from ___________.
A. World Trade Organization. B. World Trading Organize.
C. World Trade Organize. D. World of Trade for Organizer
17. My daughter plays _____ piano very well.
A. the B. a C. an D. x
18. Have you finished …… the letter?.
A.write B.to write C.writing D.to writing
19. We _____ for three hours and are very tired.
A. are walking B. have been walking C. were walking D. had been walking

20.English is spoken in many countries all ___ the world.
A. in B. over C. at D. from
III.Choose the underlined part among a, b ,c ,or d that needs correcting
21 .The headmaster of our school have been very busy since he returned from Hanoi.
A B C D
22 .A friend of mine used to smoking a lot when he was young.
A B C D
23. Each students has answered the first three questions.
A B C D
24 The man whom helped you yesterday is a television reporter.
A B C D
25. Living in the city is more comfortably than in the country.
A B C D
IV. Read the passage and then choose the correct answers
It is said that mathematics is the base of all other sciences, and that arithmetic, the science of
numbers, is the base of mathematics. Numbers consist of whole numbers (integers) that are formed by the
digits 0, 1, 2, 3, 4, 5, 6, 7, 8, and 9 and by the combinations of them. For example, 247 — two hundred and
forty seven — is a number formed by three digits. Parts of numbers smaller than 1 are sometimes
expressed in terms of fraction, but in scientific usage they are given as decimals. This is because it is
easier to perform the various mathematical operations if decimals are used instead of fractions. The main
operations are: to add, subtract, multiply and divide; to square, cube, or raise to any other power; to take a
square, cube, or any other root, and to find a ratio or proportion between pairs of numbers or a series of
numbers. Thus, the decimal, or ten-scale, system is used for scientific purposes throughout the world,
even in countries whose national systems of weights and measurements are based upon other scales. The
other scale in general use nowadays is the binary, or two-scale, in which numbers are expressed by
combinations of only two digits, 0 and 1. Thus, in the binary scale, 2 is expressed as 010, 3 is given as Oh,
4 is represented as 100, etc. This scale is perfectly adapted to the “off-on” pulse of electricity, so it is
widely used in electronic computers. Because of its simplicity it is often called “the lazy schoolboy’s
dream.”!
26. The main topic of the text is about _____

A. numbers B. mathematics C. arithmetic D. binary
27. Numbers which are smaller than integers are scientifically shown as ___
A. digits B. scales C. cubes D. decimals
28. According to the passage, mathematical operations include:
A. to add, subtract, multiply and divide
B. to square, cube, or raise to any other power
C. to take a square, cube, or any other root, and to find a ratio
or proportion between pairs of numbers or a series of numbers
D. All are correct
29. The binary is a system _____
A. in which mathematics is the base of all other sciences
B. in which numbers are expressed by combinations of only two digits, O and 1
C. in which whole numbers are formed by the digits 0,1,2,3,4,5,6,7, 8 and 9
and by the combinations of them
D. that every lazy schoolboy uses
30 What can be referred from the phrase “the lazy schoolboy’s dream”?
A. Electronic computers make mathematic operations easier for schoolboys.
B. Lazy schoolboys dream of having an electronic computers.
C. Using electronic computers make schoolboys lazy and sleepy.
D. All are correct