$\Rightarrow$

Ex 2:

1. had started

2. had lived

3. had eaten

4. had listened

5. had left

6. had finished

7. had been

8. had met

9. had forgotten

10. had studied

11. hadn't rained

12. hadn't played

13. hadn't done

14. hadn't eaten

15. hadn't brought

16. hadn't visited

17. hadn't met

18. hadn't had

19. hadn't used

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- Công thức thì Quá khứ hoàn thành:

(+) S + had + V3.

(-) S + hadn't + V3.

(?) Had + S + V3?

- Yes, S + had.

- No, S + hadn't.

1. When Hoa arrived at the theater, the film had started(start).

2. He had lived(live) in Laos before He went to Vietnam.

3. After Lan had eaten(eat) the cake, Lan began to feel sick.

4. She  had finished(finish) her homework by 10 p.m last night.

5. Linh had arrived (arrive) before I left.

6. After they had finished (finish) lunch, they went out.

7. The tree was dead because it had been(be) arid all summer.

8. I had met (meet) him somewhere before.

9. They were late for the flight because they had forgotten (forget) their passports.

10. Linh told me she had studied(study) a lot before the exam.

11. The leaf was yellow because it hadn't rained (not/rain) all summer.

12. The lamp went off because I  hadn't paid (not/pay) the electricity bill.

13. Hoa hadn't done (not/do) her homework, so she was in trouble.

14. She hadn't eaten (not/eat) so we went to a restaurant.

15. I couldn’t go into the cinema because I hadn’t brought (not/bring) my tickets.

16. He said that He hadn’t visited (not/visit) the US before.

17. Hoa and Lan hadn’t met (not/meet) before the exam.

18. I hadn’t had (not/have) lunch when she arrived.

19. She hadn’t used (not/use) smartphone before, so I showed her how to use it.