Ex. 3. Give the correct verbs form.
1. When Hoa arrived at the theater, the film ____________(start).
2. He ____________ (live) in Laos before He went to Vietnam.
3. After Lan ____________ (eat) the cake, Lan began to feel sick.
4. If he ____________ (listen) to me, he would have got the job.
5. Linh didn’t arrive until after I ____________ (leave).
6. When they ____________ (finish) lunch, they went out.
7. The tree was dead because it ____________ (be) arid all summer.
8. I ____________ (meet) him somewhere before.
9. They were late for the flight because they ____________ (forget) their passports.
10. Linh told me she ____________ (study) a lot before the exam.
11. The leaf was yellow because it ____________ (not/rain) all summer.
12. The lamp went off because I ____________ (not/pay) the electricity bill.
13. Hoa____________ (not/do) her homework, so she was in trouble.
14. She ____________ (not/eat) so we went to a restaurant.
15. I couldn’t go into the cinema because I ____________ (not/bring) my tickets.
16. He said that He ____________ (not/visit) the US before.
17. Hoa and Lan ____________ (not/meet) before the exam.
18. I ____________ (not/have) lunch when she arrived.
19. She ____________ (not/use) smartphone before, so I showed her how to use it.
20. Linh ____________ (not/study) for the exam, so she was very anxious.