ADVERBIAL CLAUSE OF TIME
I. Put the verbs in brackets into correct tense
1. How long do you want me to heat the oil? –heat it till it (begin) ……………..to smoke.

2.
3.
4.
5.

How long are you going to stay here? - I’m going to stay here until my brother (finish)………………….. his exams.
When I (get) ………………..to the cinema, the film (start)…………………...
By the time you (read) ……………………..this book, your meal will get cold.

Please tell me how to get to the hospital? - Go till you (come)……………… to a square with a statue in the middle; then
turn left and you (find) it on your right.
6. I (read)………………………. book while my sister (do)……………… her homework. When he (come)……………….., I
(watch)………………. a football match on TV.
7. When I (walk) …………………down the street, I (see) ……………..her.

8. We will go with him as soon as we (finish) ……………………..the task.
9. I (learn) ……………………English since I (be)……………. six years old
10. When we (see) …………….them last night, they (sing)…………………………….
11. They (say)……………….. they (sing) ……………….since 6 o'clock.
12. I hope it (not rain) ………………..when the bride (leave)…………….. the church tomorrow.
13. I will stay with you until your mother (come) ……………………home.
14. After he had got the money, he (leave) ……………………home immediately.
15. When he (arrive)………………………….., he will tell us the truth.
16. Mary was dancing while John (sing)……………………..
17. The train left as we (arrive)………………….
18. By the time I (leave) …………the room. I had turned off the lights.
19. The first time I ( go)…………. to New York, I saw a ballet.

20. Have you a good time when you (go) ………………………….to Paris next week.
II. Choose the best answer.
1. Lan has learnt English since she_________ a small girl.
A. is
B. was
C. has been
2. Don’t go anywhere until I_________ back.
A. come
B. came
C. will come
3. Before cars_________, people_________ horses and bicycles.
A. were discovered/ had used B. discovering/ had used
C. had discovered/ used
D. discovered/ had used
4. I am going to speak with the boss when the meeting _______.
A. will end
B. ends
C. is ending
5. When we_________ him tomorrow, we will remind him of that.
A. will see
B. see
C. am seeing
6. When he comes, I_________ her the news.
A. tell
B. will tell
C. would tell
7. When the police came, they _________.
A. are fighting
B. fought
C. would be fighting

8. Before she came to England, she _________ English.
A. studies
B. will study
C. had studied
9. I have lost touch with him _________ He left for London.
A. as soon as
B. after
C. before
10. My mother is washing the dishes _________ my father is watching television.
A. when
B. while
C. as
11. _______, I will give him the report.
A. When he will return
B. When he returns
C. Until he will return
D. No sooner he returns
12. _______ the firemen arrived to help, we had already put out the fire.
A. Until
B. No sooner
C. By the time
13. I have earned my own living _______ I was seven.
A. since
B. when
C. while
14. We saw many beautiful birds _______ in the lake.
A when we are fishing
B. while fishing
C. while fished
D. fishing

15. _______, Peter came to see me.
A. While having dinner
B. While I was having dinner
C. When having dinner
D. When lam having dinner
16. _______ my homework, I went to bed.
A. After I had finished
B. After finished

D. had been
D. am coming

D. would end
D. saw.
D. would have told
D. were fighting
D was studying
D. since
D. since

D. After
D. as soon as


C. Finished

D. After had finished

17. _______ the dance, Jerry said good-bye to his girlfriend.
A. Before left


B. Before he leaves

C. Before leaving

D. Before he will leave

18. Jones _______ after everyone _______.
A. speaks / will eat
B. will speak / has eaten
C. is speaking / eats
D. has spoken / will have eaten
19. _______, Joe stays in bed and reads magazines.
A. Whenever raining
B. As it will be raining
C. When it will rain
D. Whenever it
rains
20. _______ in Rome than he was kidnapped.
A. No sooner he arrived
B. Had he no sooner arrived
C. No sooner had he arrived D. No sooner he had arrived
21. _______ Peter gets here, we will congratulate him.
A. As soon as
B. After
C. No sooner
D. Since
22. Mrs. Pike _______ the door before the customers arrived.
A. had opened
B. will open

C. would open
D. has open
23. After Mariana _______ her exam, I _______ her out to eat.
A. was finishing / would take B. finished / had taken
C. will finish / have taken
D. has finished / will take
24. Mary will have finished all her work _______.
A. as soon as her boss returned
B. until her boss will return
C. by the time her boss returns
D. when he-r boss will return
25. She went on crying, with her head sunk into a pillow, and cried and cried _______ the pillow was wet through.
A. before
B. after
C. until
D. while
26. _________ you finish typing that report make five copies of it and give it to aloof the officers.
A. While
B. When
C. But
D. Although
27. When the passenger ________, will you please give him this package?
A. will arrive
B. arrives
C. would arrives
D. arriving
28. They were playing in the garden when_______.
A. they have heard a scream B. they were hearing a scream
C. they heard a scream
D. they had heard a scream

29. He cleaned his shoes_______ they shone.
A. when
B. after
C. while
D. until
30. I had no sooner lit the barbecue _______ it started to rain.
A. as
B. while
C. than
D. that
31. When the paint_______ it'll change from a light to a deep red.
A. dry
B. dries
C. dried
D. will dry
32. When_______ older I'd love to be an artist.
A. I'm
B. I'll be
C. was
D. have been
33. By the time he retires, he_______ $20,000.
A. will save
B. has saved
C. had saved
D. will have saved
34. When I_______ here for fifteen years I'll be entitled to a pension.
A. work
B. am working
C. have worked
D. had worked

35. I will call you before I ________ over.
A. come
B. will come
C. will be coming
D. came
36. After she graduates, she ________ a job.
A. got
B. will get
C. had got
D. get
37. When I _________ him tomorrow, I will ask him.
A. saw B. have seen
C. will see
D. see
38. As soon as it _________ raining, we will leave.
A. stops B. stop
C. had stopped
D. stopped
39. By the time he comes, we will have already __________.
A. leave B. leaving
C. left
D. leaves
40. Whenever I ________ her, I say hello.
A. see
B. will see
C. will have seen
D. saw
41. The next time I go to New York, I am going ________ a ballet.
A. seeing
B. see

C. saw
D. to see
42. I will never speak to him again so long as I _______.
A. lives B. will live
C. am living
D. live
43. By the time Bill ____ to bed tomorrow, he will have had a full day and will be ready for sleep.
A. had gone
B. will go
C. goes
D. went
44. As soon as I finish my report, I will call you and we ________ out for dinner.
A. went B. will go
C. will have gone
D. go
45. Lan has learnt English since she_________ a small girl.
A. is
B. was
C. has been
D. had been
46. Don’t go anywhere until I_________ back.
A. come
B. came
C. will come
D. am coming
47. Before cars_________, people_________ horses and bicycles.


A. were discovered/ had used B. discovering/ had used
C. had discovered/ used

D. discovered/ had used
48. I am going to speak with the boss when the meeting _______.
A. will end
B. ends
C. is ending
D. would end
49. When we_________ him tomorrow, we will remind him of that.
A. will see
B. see
C. am seeing
D. saw.
50. When he comes, I_________ her the news.
A. tell
B. will tell C. would tell
D. would have told
III. Identify the underlined part that needs correction:
51. When it raining, I usually go to school by bus.
A
B
C
D
52. I learned a lot of Japanese while I am in Tokyo.
A
B
C
D
53. I have not been well since I return home.
A
B
C

D
54. I’ll stay here until will you get back.
A
B
C
D
55. When Sam was in New York, he stays with his cousins.
A
B C
D
56. Last night, I had gone to bed after I had finished my homework.
A
B
C
D
57. I will call you before I will come over.
A
B
C
D
58. Ever since I was a child, I had been afraid of dogs.
A
B
C
D
59. By the time I left my apartment this morning, someone looked for me.
A
B
C
D

60. Whenever Mark will be angry, his nose gets red.
A
B
C D


ADVERBIAL CLAUSES OF TIME
MỆNH ĐỀ TRẠNG NGỮ CHỈ THỜI GIAN
ADVERBIAL CLAUSES OF TIME
Mệnh đề trạng ngữ chỉ thời gian thường bắt đầu bằng các trạng từ chỉ thời gian như: when,
while, after, before, since, until, as soon as, …
- Sự phối hợp giữa động từ trong mệnh đề chính và mệnh đề trạng ngữ chỉ thời gian:
Main clause (Mệnh đề chính)
Adverbial clause of time (Mệnh đề trạng ngữ chỉ thời gian)
1. TLĐ + until / when / as soon as + HTĐ
Ex: I will wait here until she comes back.
2. TLĐ + after + HTHT
Ex: He will go home after he has finished his work.
3. While / when / as + QKTD, QKĐ
Ex: While I was going to school, I met my friend.
4. QKĐ + while / when / as + QKTD
Ex: It started to rain while the boys were playing football.
5. QKTD + while + QKTD
Ex: Last night, I was doing my homework while my sister was playing games.
6. HTHT + since + QKĐ
Ex: I have worked here since I graduated.
7. TLHT + by / by the time + HTĐ
Ex: He will have left by the time you arrive.
8. QKHT + by the time / before + QKĐ
Ex: He had left by the time I came.

9. After + QKHT, QKĐ
Ex: After I had finished my homework, I went to bed.
Mệnh đề trạng ngữ chỉ thời gian
Unrated
Các mệnh đề đi sau Until, After, Before, When là những mệnh đề phụ. Chúng phải được đi
kèm với mệnh đề chính thì câu mới rõ cấu trúc cú pháp.
- Có thể đảo trật tự của từng mệnh đề trong câu với điều kiện là nếu mệnh đề when, after,
before, until đi trước thì phải có dấu phẩy trước mệnh đề chính.
VD: I'll stop explaining to you about this until you can master
= Until you can master, i'll stop explaining this to you.


(Tôi sẽ thôi... khi bạn nắm được vấn đề)
- Các mệnh đề này, không phải là không được chia với thì tương lai nhưng rất hiếm.
- Các liên từ trên (trừ Until) mình để đầu hàng để bạn dễ thấy hơn
Until: Cho đến khi
1. Simple past + until + simple past: Khi hành động của mệnh đề chính đi trước kéo dài cho đến
hành động của mệnh đề đi sau
- I waited here until it was dark (Tôi đã ở lại đây đến khi trời tối)
2. Simple past + past perfect: Nhấn mạnh hành động ở mệnh đề Until với nghĩa là đã hoàn thành
trước hành động kia
- He read the book until no-one had been there (Anh ta đọc sách tới khi chẳng cịn ai ở đó nữa
cả)
Có nghĩa là khi mọi người trong thư viện đã về từ lâu rồi thì anh ta vẫn say mê đọc sách.
3. Simple future + Until + Present simple/ Present perfect: Dùng với nghĩa là sẽ làm gì cho đền
khi hồn thành việc gì đó
- I won't go to bed until i have finished my homework. (Tôi sẽ đi ngủ khi làm xong bài tập)
= I will go to bed until i finish my homework.
- We'll stayed here until the rain stops.
After: Sau khi

1. After + past perfect, + simple past = Past perfect + before + past perfect: Sau khi đã kết thúc
việc gì mới làm việc gì (QK)
- After i had finished the test, i went home (Khi kiểm tra xong tôi mới về nhà)
= I had finished the test before i went home
2. After + simple past, + simple present: Sự việc trong quá khứ và kết quả hiện tại
- After everything happened, we are still good friends (Sau những chuyện xảy ra, chúng tôi
vẫn là những người bạn tốt)
3. After simple past, + simple past: Sự việc trong quá khứ và kết quả trong quá khứ
- After everything happened, we quarelled over dishonesty.
(Sau mọi chuyện [ không tốt ], chúng tơi đã cãi vã nhau về tính khơng trung thực)
4, After + simple present / present perfect, + simple future: Sau khi làm việc gì sẽ làm tiếp việc
khác (HT / TL)
- After i come to the station, i'll call you (Sau khi đến ga anh sẽ gọi cho em)
Before: Trước khi.
Cách chia thì của nó thì ngược lại với after.
1. Before + simple past, + past perfect: Tương tự như phần 1 của mục II.
2. Before + simple present, + simple future / simple present: Trước khi làm gì thì sẽ làm một cái gì
đó
- Before i leave, i'll give you a gift (Trước khi đi, anh sẽ tặng em một món quà)
- Before i leave, i want to make sure that no-one can know about this
(Trước khi đi tơi muốn biết chắc chắn rằng khơng có ai biết được chuyện này)
When: Khi
1. When + present simple, + simple future / simple present: Khi làm thế nào thì (sẽ)... (ở HT / TL)


When you see it yourself, you'll surely believe it.
(Khi em thấy tận mắt, em sẽ tin nó thơi)
2. When + simple past, + past perfect: Diễn tả hành động xảy ra và hoàn tất trước hành động ở
mệnh đề when.
When i just got out of the classroom, i knew that i had made some mistakes.

(Khi mới bước ra khỏi phòng, tơi nhận ra là mình đã mắc một số lỗi)
3. When + simple past, + simple past: Diễn tả hai hành động xảy ra gần nhau, hoặc là một hành
động vừa dứt thì hành động khác xảy ra.
- When the rock concert given by Erick Clapton ended, we went home
(Khi buổi nhạc rock của Ẻick Clapton kết thúc, chúng tôi ra về)
4. When + past continuous (clear point of time - thời gian cụ thể), + simple past: Khi một hành
động đang diễn ra thì một hành động khác xảy đến
When we were playing football at 5.30p.m yesterday, there was a terrible explosion
(Vào lúc 5h30 chiều qua, khi đang chơi bóng thì bọn tơi chợi nghe thấy một tiếng nổ lớn)
5. When + simple past, + past continuous: Tương tự như phần 4, nhưng nghĩ chỉ khác một chút
When we came, he was taking a bath
(Khi bọn tơi đến thì cậu ta đang tắm)
6. When + past perfect, + simple past: Hành động ở mệnh đề when xảy ra trước (kết quả ở QK)
When the opportunity had passed, i only knew that there was nothing could be done
(Khi cơ hội khơng cịn tơi mới biết mình đã chẳng cịn làm gì được nữa rồi)
7. When simple past, + simple present: Tương tự như mục 6 nhưng hành động sau ở hiện tại
When the opportunity passed, i know there's nothing can be done.
(Khi cơ hội tuột mất, tôi biết là chẳng cịn làm gì được nữa)
Time clause!
1. WHEN + S + V1, S + WILL +V2
Ex:When I seeyou tomorrow,I will give it to you
Trong trường hợp này,cho ta thấy thêm một chú ý,mệnh đề "when" KHÔNG chia ở future
2. WHEN + S + V1, S + WILL BE + V-ING
Ex:When you readthis letter,I will be visitingFrance.
3. WHEN + S + V1, S + WILL + HAVE + P.P(past participle)
Ex:When you readthis letter,i will have been in France for 5 year.
4. WHEN + S + V2, S + was/were +V-ING
Ex:When I came,they were sleeping.
5. WHEN + S + V2,S + V2
Ex:When I wound the alarm clock,it wentwrong.

6. WHILE + S + WAS/WERE + V-ING,S + WAS/WERE + V-ING
Ex:While I was reading books,my mother was cooking
Đây là trường hợp thì tiếp diễn được chia ở mệnh đề thời gian.
7. BEFORE + S + V2, S + HAD + P.P
Ex:Before I wentto the cinema.I had doneall my homework.


8. AFTER + S + HAD + P.P, S + V2
Ex:After I had donemy homework,I wentto the cinema.
9. S + HAD + HARDLY/NO SOONER + P.P WHEN/THAN + S +V2
Ex:She had hardly/no sooner gonehome when/than it rained
Chú ý:hardly...when ; no sooner....than
10. S + HAVE + P.P + SINCE + S + V2
Ex:Her knowledge has increasedsince she startedcollecting stamps.
Embedded sentences
Ex:I don't know where they are now.

57. When the police came, they _________.
A. are fighting
B. fought C. would be fighting
D. were fighting
58. Before she came to England, she _________ English.
A. studied
B. will study C. had studied
D was studying
59. I have lost touch with him _________ He left for London.
A. as soon as
B. after C. before
D. since
60. My mother is washing the dishes _________ my father is watching television.

A. when
B. while
C. as
D. since 62. 61_______, I will give him the report.
A. When he will return
B. When he returns
C. Until he will return
D. No sooner he returns
62. _______ the firemen arrived to help, we had already put out the fire.
A. Until
B. No sooner C. By the time D. After
63. I have earned my own living _______ I was seven.
A. since
B. when
C. while
D. as soon as
64. We saw many beautiful birds _______ in the lake.
A when we are fishing
B. while fishing
C. while fished
D. fishing
65._______, Peter came to see me.
A. While having dinner
B. While I was having dinner
C. When having dinner
D. When lam having dinner
66. _______ my homework, I went to bed.


A. After I had finished

B. After finished
C. Finished
D. After had finished
67. _______ the dance, Jerry said good-bye to his girlfriend.
A. Before left
B. Before he leaves
C. Before leaving
D. Before he will leave
26.

Identify the underlined part that needs correction:
When it raining, I usually go to school by bus.
A
B
C
D

27.

I learned a lot of Japanese while I am in Tokyo.
B
C
D

A
28.

I have not been well since I return home.
A
B

C
D

29.
A
30.

I’ll stay here until will you get back.
B
C
D
When Sam was in New York, he stays with his cousins.
A
B C
D

31.

Last night, I had gone to bed after I had finished my homework.
A
B
C
D

32.

I will call you before I will come over.
A
B
C

D

33.

Ever since I was a child, I had been afraid of dogs.
A
B
C
D

34.

By the time I left my apartment this morning, someone looked for me.
A
B
C
D

35.

Whenever Mark will be angry, his nose gets red.
A
B
C D

36.

I had fried chicken when I am at the restaurant.
A
B

C
D

37.

The first time that I went to New York, I go to an opera.
A
B
C
D

I. Put the verbs in brackets into correct tense

21. How long do you want me to heat the oil? –heat it till it (begin) to smoke. (begins)
22. How long are you going to stay here? - I’m going to stay here until my brother (finish) his exams.

(has

finished/ finishes)

23. When I (get) to the cinema, the film (start). (got / had started)
24. By the time you (read) this book, your meal will get cold. (read)
25. Please tell me how to get to the hospital? - Go till you (come) to a square with a statue in the middle; then turn left and
you (find) it on your right.

(come/ will find)

26. I (read) book while my sister (do) her homework. (was reading / was doing)
27. When he (come), I (watch) a football match on TV. (came/ was watching)
28. When I (walk) down the street, I (see) her.

(was walking / saw)
29. We will go with him as soon as we (finish) the task. (have finished)
30. I (learn) English since I (be) six years old.
(have learned / was)
31. When we (see) them last night, they (sing). They (say) they (sing) since 6 o'clock.
32. I hope it (not rain) when the bride (leave) the church tomorrow.
33. I will stay with you until your mother (come) home.
34. After he had got the money, he (leave) home immediately.
35. When he (arrive), he will tell us the truth.
36. Mary was dancing while John (sing).
37. The train left as we (arrive).
38. By the time I (leave) …………the room. I had turned off the lights.
39. 10. The first time I ( go)…………. to New York, I saw a ballet.


40. 11. Have you a good time when you (go) to Paris next week.
II. Choose the best answer.

35. Lan has learnt English since she_________ a small girl.
A. is

B. was

C. has been

D. had been

C. will come

D. am coming


C. is ending

D. would end

C. am seeing

D. saw.

C. would tell

D. would have told

C. would be fighting

D. were fighting

C. had studied

D was studying

C. before

D. since

36. Don’t go anywhere until I_________ back.
A. come

B. came


37. Before cars_________, people_________ horses and bicycles.
A. were discovered/ had used B. discovering/ had used
C. had discovered/ used

D. discovered/ had used

38. I am going to speak with the boss when the meeting _______.
A. will end

B. ends

39. When we_________ him tomorrow, we will remind him of that.
A. will see

B. see

40. When he comes, I_________ her the news.
A. tell

B. will tell

41. When the police came, they _________.
A. are fighting

B. fought

42. Before she came to England, she _________ English.
A. studied

B. will study


43. I have lost touch with him _________ He left for London.
A. as soon as

B. after

44. My mother is washing the dishes _________ my father is watching television.
A. when

B. while

C. as

D. since

45. _______, I will give him the report.
A. When he will return

B. When he returns

C. Until he will return

D. No sooner he returns

46. _______ the firemen arrived to help, we had already put out the fire.
A. Until

B. No sooner

C. By the time


D. After

C. while

D. as soon as

47. I have earned my own living _______ I was seven.
A. since

B. when

48. We saw many beautiful birds _______ in the lake.
A when we are fishing

B. while fishing

C. while fished

D. fishing

49. _______, Peter came to see me.
A. While having dinner

B. While I was having dinner

C. When having dinner

D. When lam having dinner


50. _______ my homework, I went to bed.
A. After I had finished

B. After finished

C. Finished

D. After had finished

51. _______ the dance, Jerry said good-bye to his girlfriend.
A. Before left

B. Before he leaves

C. Before leaving

D. Before he will leave

52. Jones _______ after everyone _______.
A. speaks / will eat

B. will speak / has eaten

C. is speaking / eats

D. has spoken / will have eaten


53. _______, Joe stays in bed and reads magazines.
A. Whenever raining


B. As it will be raining

C. When it will rain

D. Whenever it

rains

54. _______ in Rome than he was kidnapped.
A. No sooner he arrived

B. Had he no sooner arrived

C. No sooner had he arrived D. No sooner he had arrived

55. _______ Peter gets here, we will congratulate him.
A. As soon as

B. After

C. No sooner

D. Since

C. would open

D. has open

56. Mrs. Pike _______ the door before the customers arrived.

A. had opened

B. will open

57. After Mariana _______ her exam, I _______ her out to eat.
A. was finishing / would take B. finished / had taken
C. will finish / have taken

D. has finished / will take

58. Mary will have finished all her work _______.
A. as soon as her boss returned

B. until her boss will return

C. by the time her boss returns

D. when he-r boss will return

59. She went on crying, with her head sunk into a pillow, and cried and cried _______ the pillow was wet through.
A. before

B. after

C. until

D. while

60. _________ you finish typing that report make five copies of it and give it to aloof the officers.
A. While


B. When

C. But

D. Although

61. When the passenger ________, will you please give him this package?
A. will arrive

B. arrives

C. would arrives

D. arriving

C. while

D. until

C. than

D. that

C. dried

D. will dry

C. was


D. have been

C. had saved

D. will have saved

C. have worked

D. had worked

62. They were playing in the garden when_______.
A. they have heard a scream B. they were hearing a scream
C. they heard a scream

D. they had heard a scream

63. He cleaned his shoes_______ they shone.
A. when

B. after

64. I had no sooner lit the barbecue _______ it started to rain.
A. as

B. while

65. When the paint_______ it'll change from a light to a deep red.
A. dry

B. dries


66. When_______ older I'd love to be an artist.
A. I'm

B. I'll be

67. By the time he retires, he_______ $20,000.
A. will save

B. has saved

68. When I_______ here for fifteen years I'll be entitled to a pension.
A. work

B. am working

35. I will call you before I ________ over.
A. come
B. will come
C. will be coming
D. came
36. After she graduates, she ________ a job.
A. got
B. will get
C. had got
D. get
37. When I _________ him tomorrow, I will ask him.
A. saw B. have seen
C. will see
D. see

38. As soon as it _________ raining, we will leave.
A. stops B. stop
C. had stopped
D. stopped
39. By the time he comes, we will have already __________.
A. leave B. leaving
C. left
D. leaves
40. Whenever I ________ her, I say hello.
A. see
B. will see
C. will have seen
D. saw


41. The next time I go to New York, I am going ________ a ballet.
A. seeing
B. see
C. saw
D. to see
42. I will never speak to him again so long as I _______.
A. lives B. will live
C. am living
D. live
43. By the time Bill ____ to bed tomorrow, he will have had a full day and will be ready for sleep.
A. had gone
B. will go
C. goes
D. went
44. As soon as I finish my report, I will call you and we ________ out for dinner.

A. went B. will go
C. will have gone
D. go
45. Lan has learnt English since she_________ a small girl.
A. is
B. was
C. has been
D. had been
46. Don’t go anywhere until I_________ back.
A. come
B. came
C. will come
D. am coming
47. Before cars_________, people_________ horses and bicycles.
A. were discovered/ had used B. discovering/ had used
C. had discovered/ used
D. discovered/ had used
48. I am going to speak with the boss when the meeting _______.
A. will end
B. ends
C. is ending
D. would end
49. When we_________ him tomorrow, we will remind him of that.
A. will see
B. see
C. am seeing
D. saw.
50. When he comes, I_________ her the news.
A. tell
B. will tell C. would tell

D. would have told
57. When the police came, they _________.
A. are fighting
B. fought C. would be fighting
D. were fighting
58. Before she came to England, she _________ English.
A. studied
B. will study C. had studied
D was studying
59. I have lost touch with him _________ He left for London.
A. as soon as
B. after C. before
D. since
60. My mother is washing the dishes _________ my father is watching television.
A. when
B. while
C. as
D. since 62. 61_______, I will give him the report.
A. When he will return
B. When he returns
C. Until he will return
D. No sooner he returns
62. _______ the firemen arrived to help, we had already put out the fire.
A. Until
B. No sooner C. By the time D. After
63. I have earned my own living _______ I was seven.
A. since
B. when
C. while
D. as soon as

64. We saw many beautiful birds _______ in the lake.
A when we are fishing
B. while fishing
C. while fished
D. fishing
65._______, Peter came to see me.
A. While having dinner
B. While I was having dinner
C. When having dinner
D. When lam having dinner
66. _______ my homework, I went to bed.
A. After I had finished
B. After finished
C. Finished
D. After had finished
67. _______ the dance, Jerry said good-bye to his girlfriend.
A. Before left
B. Before he leaves
C. Before leaving
D. Before he will leave