19. The accident __________ while he was driving very fast on the street.
A. was happening B. happened C. had happened D. happens
20. Last Monday Alex __________ her lessons carefully before she went to class.
A. prepared B. was preparing C. prepares D. had prepared
21. Nam went to Australia for his study in 2000 after he __________ English for 4 years in Vietnam.
A. had learnt B. has learnt C. learnt D. was learning
22. I __________ to school by bus every day.
A. went B. go C. am going D. was going
23. My family __________ Ha Long Bay 5 years ago.
A. visit B. had visited C. visited D. have visited
24. Thomas __________ school when he __________ 5 years old.
A. went/was B. had went/was C. went/had been D. goes/is
25. Mary: Where is John? > Alex: He _________ in the garden with his father at the moment.
A. works B. is working C. was working D. worked
26. My sister often makes me _________ the floor every evening.
A. clean B. to clean C. cleaning D. cleaned
27. It takes my mother 15 minutes to prepare the breakfast every day.
A. to have B. to buy C. to get ready D. to clean up
28. The ladder __________ off while Nam __________ the wall yesterday, so he was badly injured.
A. fell/painted B. was falling/was painting C. had fallen/painted D. fell/was painting
29. Last night I __________ TV before I __________ to bed
A. had watched/went B. watched/was going C. watched/went D. watched/had gone
30. He used to harbor a dream of _________ career when he was at high school.
A. science B. scientist C. scientific D. scientifically
31. She usually practices _________ English with her friends.
A. to speak B. speaking C. speak D. to peaking
32. Tom _______ a student, and he _______ to school by bus every day.
A. is/is going B. was/goes C. was/went D. is/goes
B
C
E
F 
1 – c: Yesterday was Monday. - Was it?
(Hôm qua là thứ Hai. – Phải không?)
2 – a: Nothing exciting happened on holiday. - Didn't it?
(Không có gì thú vị xảy ra trong kỳ nghỉ. – Phải không?)
3 – e: Our dog had never run away before. - Hadn't it?
(Con chó của chúng tôi chưa bao giờ bỏ chạy trước đây. - Phải không?)
4 – b: The train had to stop suddenly. - Did it?
(Tàu phải dừng đột ngột. – Phải không?)
5 – d: My laptop has broken again. - Has it?
(Máy tính xách tay của tôi lại bị hỏng. – Phải không?)