1. went

2. played

3. ate

4. took

5. had

6. didn't buy

7. didn't talk

8. didn't come

9. didn't close

10. didn't return

11. didn't eat

12. didn't go

13. didn't take

14. didn't have

15. did 

16. what did ...... play

17. what did ... try

mấy câu này toàn là QKĐ nha 

1. went

2. played

3. ate

4. took

5. had

6. didn't buy

7. didn't talk

8. didn't come

9. didn't close

10. didn't return

11. didn't eat

12. didn't go

13. didn't take

14. didn't have

15. were

16. what did (they) play

17. what did (Hoa) try

Giải thích: Các câu đều có các dấu hiệu nhận biết của thì Quá Khứ Đơn như(last.., yesterday, ago..)