Một số cách hòa hợp thì giữa mệnh đề chính và mệnh đề thời gian:
(Mệnh đề chính)
(Mệnh đề trạng ngữ chỉ thời gian)
Hiện tại
Hiện tại
Quá khứ
Quá khứ
Tương lai
Hiện tại
TLĐ + until / when / as soon as + HTĐ I will wait here until she comes back.
TLĐ + after + HTHT He will go home after he has finished his work.
while / when / as + QKTD, QKĐ While I was going to school, I met my friend.
QKĐ + while / when / as + QKTD
It (start) --------------- to rain while the boys (play) -------------- football.
QKTD + while + QKTD
Last night, I was doingmy homework while my sister was playing games.
HTHT + since + QKĐ I (work) -------------------- here since I (graduate)---------------------.
After + QKHT, QKĐ After I had finished my homework, I (go) --------------- to bed.
Before / By the time + QKĐ + QKHT
Before she (have) ---------------- dinner, she (write) ------------- letter.
EXERCISES Part A: Multiple Choices 1. He was writing to his friend when he __________a noise.
A. was hearing B. heard C. had heard D. hears
2. I __________many people since I came here in June.
A. met B. has met C. was meeting D. have met
3. We __________ maths at this time last week.
A. were learning B. are learning C. was learning D. learnt
4. She was playing games while he __________a football match.
A. watched B. watches C. was watching D. watching
5. She __________to Ho Chi Minh city last year.
A. goes B. has gone C. go D. went
6. Since we came here, we ______ a lot of acquaintances.
A. have had B. had C. have D. are having
7. __________he playing football now?
A. Will B. Does C. Was D. Is
8. Every morning, I often sit in my garden and____ to my nightingale sing.
A. listening B. listen C. listened D. listens
9. She __________school when she was six.
A. start B. started C. has started D. are starting
10. I. __________TV when the telephone rang.
A. watched B. was watching C. are watching D. have watched
11. I will contact you as soon as I ___________the information.
A. will get B. get C. got D. had got
12. If he's late again, I_____ very angry.
A. am going to be B. will be C. would be D. am
13. A: “The phone is ringing” B. “ I ______it”.
A. answer B. will answer C. have answered D. will be answering
14. Yesterday, I _______ for work late because I _______ to set my alarm.
A. had left / forgot B. was leaving / was forgetting
C. left / had forgot D. had been leaving / would forget
15. By the time we ____ to the train station, Susan _____ for us for more than two hours.
A. will get / has been waiting B. got / was waiting
C. got / had been waiting D. get / will wait
16. While her brother was in the army, Sarah ___________ to him twice a week.
A. was writing B. wrote C. has written D. had written
17. The Titanic _______ the Atlantic when it _______ an iceberg.
A. was crossing / struck B. had crossed / was striking
C. crossed / had struck D. is crossing / strikes
18. In the 19th century, it _______ two or three months to cross North America by covered wagon.
A. took B. had taken C. had taken D. was taking
19. Last night at this time, they _______ the same thing. She ______ and he _________ the Newspaper.
A. are not doing / is cooking / is reading B. were not doing / was cooking / was reading
C. was not doing / has cooked / is reading D. had not done / was cooking /read
20. After he ____________ his English course, he went to England to continue his study.
A. finish B. finishes C. finished D. had finished 21. It’s a long time since we last went to the cinema.
A. We have been to the cinema for a long time. B. We haven’t been to the cinema for a long time.
C. We don’t go to the cinema as we used to. D. We wish we went to the cinema now.
22. The last time I saw Rose was three years ago.
A. I didn’t see Rose for three years. B. I haven’t seen Rose three years ago.
C. I haven’t seen Rose since three years. D. I haven’t seen Rose for three years.
23. I haven't visited the museum for three months.
It is three months since I have visited the museum.
I didn't visit the museum three months ago.
C. The last time I had visited the museum was three months ago.
D. It is three months since I visited the museum.
24. "John began playing the piano 10 years ago"
John played the piano 10 years ago. C. John has played the piano for 10 years.