

A. Choose the best answer among A, B, C or D to complete each sentence.
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. startB. startedC. has started D. are starting
10. I. __________TV when the telephone rang.
A. watched B. was watchingC. are watching D. have watched
11. She__________ lunch by the time we arrived.
A. had finished B. finished C. have finished D. finishing
12. This record-shop__________ be a book-shop a few years ago.
A. used toB. useC. used D. used
13. I couldn't come to the party because I __________go to work.
A. have B. had to C. have got D. had
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 writingB. wroteC. 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. When I _____ home last night, I ____that Jane ______ a beautiful candlelight dinner.
A. had arrived / discovered / prepared
B. was arriving / had discovered / was preparing
C. have arrived / was discovering / had prepared
D. arrived / discovered / was preparing
21. After he ____________ his English course, he went to England to continue his study.
A. finish B. finishes C. finishedD. had finished
22. Angelina Jolie is a famous actress. She ________ in several films.
A. appears B. is appearing C. appeared D. has appeared
23. Mai____ in HCM for five years.
A. livesB. has livedC. is living D. was living
24. My little sister________ "sleeping beauty" several times.
A. watchesB. is watching C. has watched D. watched
25. I ______ to New York three times this year.
A. have beenB. was C. were D. had been
26. I ______ her since I _____ a student.
A. know/ amB. knew/ wasC. have known/ amD. have known/ was
27. The train _____ when we got to the station.
A. just left B. just leavesC. had just leftD. will leave
28. Her father ______ when she was a small girl.
A. diesB. diedC. has diedD. had died
29. Almost everyone _______ for home by the time we arrived.
A. leaveB. leftC. leavesD. had left
30. I ______ to the same barber since last year.
A. am goingB. have been goingC. goD. had gone
Giúp em với ạ - giải thích cho e vs ạ
Hãy luôn nhớ cảm ơn và vote 5*
nếu câu trả lời hữu ích nhé!

Công thức thì HTHT
(+) S + has/have + V3/ed
(-) S + has/have + not + V3/ed
(?) Has/Have + S+ V3/ed?
DHNB: before, since + mốc thời gian, for + khoảng thời gian, yet, already, just,....
Công thức thì QKHT
(+) S + had + V3/ed
(-) S + had + not + V3/ed
(?) Had + S+ V3/ed?
Công thức thì HTĐ (V: thường)
S số ít, he, she, it
(+) S + Vs/es
(-) S+ doesn't + V1
(?) Does +S +V1?
S số nhiều, I, you, we, they
(+) S + V1
(-) S+ don't + V1
(?) Do + S+ V1?
DHNB: always, usually, sometimes, often, never, seldom,....
Công thức thì HTTD
(+) S + am/is/are + Ving
(-) S + am/is/are + not + Ving
(?) Am/Is/Are +S +Ving?
DHNB: now, right now, (!), at present, at the moment,.....
Công thức thì QKTD
(+) S + was/were + Ving
(-) S + was/were+ not + Ving
(?) Was/Were +S +Ving?
Công thức thì QKĐ (V: to be)
(+) S + was/were + ...
(-) S + was/were + not ...
(?) Was/Were + S ... ?
S số ít, I, he, she, it + was
S số nhiều, you, we ,they + were
Công thức thì QKĐ (V: thường)
(+) S + V2/ed
(-) S + didn't + V1
(?) Did + S+ V1?
DHNB: ago, last (year, month ...), yesterday, in + năm QK, ...
-------------------------------------------------
1. B
QKTD + when + QKĐ: hành động đang diễn ra thì có hành động cắt ngang
2. D
HTHT + since +QKĐ
3. A
DHNB: at this time last week (QKTD)
4. C
QKTD + when + QKTD: hành động xảy ra song song
5. D
DHNB: last year (QKD)
6. A
Since + QKĐ, HTHT
7. D
DHNB: now (HTTD)
8. B
DHNB: every morning, often (HTD)
9. B
QKĐ + when + QKĐ
10. B
QKTD + when + QKĐ: hành động đang diễn ra thì có hành động cắt ngang
11. A
QKHT + by the time + QKĐ: hành động trước sau
12. A
used to + V1: đã từng
13. B
had to +V1: phải làm gì
14. C
15. C
By the time + QKD, QKHT/ QKHTTD : hành động trước sau
16. B
While + QKĐ, QKĐ
17. A
QKTD + when + QKĐ: hành động đang diễn ra thì có hành động cắt ngang
18. A
DHNB: in the 19th century (QKD)
19. B
20. D
When + QKĐ, QKTD: hành động đang diễn ra thì có hành động cắt ngang
21. D
After + QKHT, QKĐ: hành động trước sau
22. D
DHNB :several times (HTHT)
23. B
DHNB: for five years (HTHT)
24. C
DHNB: several times (HTHT)
25. A
DHNB :three times this year (HTHT)
26. D
HTHT + since + QKĐ
27. C
QKHT + when + QKĐ: hành động trước sau
28. B
QKĐ + when + QKĐ
29. D
QKHT + by the time + QKĐ: hành động trước sau
30. B
DHNB: since last year (HTHTTD)
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