I.

11. took

12. arrived ~ weren't

13. said ~ would buy

- Hành động sẽ diễn ra mang tính hứa hẹn -> TLD

14. taught

15. started ~ was

16. donated

17. rang ~ invited

18. did you watch

19. was ~ used to

- used to + V-inf: đã từng làm gì

20. Did you go

II.

12. thought

13. went

14. drove

15. arrived ~ was

16. asked ~ had

17. said

18. told

19. walked

20. stopped

21. stopped ~ bought

22. was

23. didn't go

24. Did she get

25. did you do ~did

26. loved

27. got ~ had

28. bought

29. didn't go

30. had

--------------------

- Cấu trúc quá khứ đơn:

- Dạng động từ thường:

(+) S + V2/ed

(-) S + didn’t + V-inf

(?) Did + S + V-inf?

- Dạng động từ tobe:

(+) S + was/were + adj/N

(-) S + was/were + not + adj/N

(?) Was/Were + S + adj/N?

He/She/It//I/N(số ít) -> was

They/We/You/N(số nhiều) -> were

- Dấu hiệu nhận biết: Yesterday, last night, last month, last Sunday/Monday/Thursday/Wednesday

- Diễn tả hành động xảy ra liên tiếp trong quá khứ -> dùng quá khứ đơn