1. saw, was walking
2. had done
3. played
when he was a little boy → quá khứ đơn
4. raining
stop + Ving: dừng làm việc gì
5. came, had already gone
6. to read
remember to V: nhớ phải làm gì
7. collecting
8. was seen, worn
The last time → qkđ
Câu bị động thì qkđ: was/were + P2
9. haven't seen/ left
since → htht
sau since chia thì qkđ
10. would get
11. went, had turned
12. be taken
13. have lived
since we came here → htht
14. had graduated
15. will be finishing
by the end of the next year( thời gian xác định trong tương lai) → tương lai tiếp diễn
16. was having, stopped
17. have lived, was
18. will be working
19. was talking, started, broke
20. was, went
21. discovered
500 years ago → qkđ
22. left, still rained
23. will do, get
tomorrow → tương lai đơn
24. lost, was
25. came, were
26. had already had
27. has never seen
28. entered, had already gone
29. have studied
so far → htht
30. being criticized
don't mind + Ving: không phiền làm gì
31. reading
spend time (on) doing sth(v) dành thời gian làm gì
32. taking
enjoy + V_ing: có hứng thú làm gì
33. have been
34. was, made, cry
35. lost
36. had been
37. had never seen
38. enjoys being deceived
39. arrived, still slept
40. telephoning, writing
41. to sign
42. wears, saw, worn
43. to open
how to do sth: cách làm gì
44. to travel
45. spending, earning