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1. It's time you cut your hair.
2. I haven't seen her for three years.
3. The lesson will be explained by the teacher until all the students understand it.
4. Jeans are sold all over the world.
5. A new library is going to be built in the area.
6. We were made to laugh a lot by the clown.
7. Your homework has to be finished on time.
8. The shop is opened by my mother at six o'clock.
9. Her name wasn't remembered by us.
10. The meeting will be held by the boss before the weekend.
11. You weren't asked about that accident.
12. The victims have been provided with food by the government.
13. Mr.Tom has played the guitar for five years.
14. This is the first time I have eaten this kind of food.
15. Already this year, 15 people have been killed in industrial accidents.
16. It's 3 years since my daughter started to learn English.
17. How long is it since you learned English?
18. The last time she flew to Sydney with him was in February.
19. The last time we visited Ha Noi was two years ago.
20. When did they buy the house?
21. He hasn't smoked cigarettes for a long time.
22. Minh's friend has watched that films for half an hour.
23. Mai hasn't met that teacher since she was a little girl.
24. The last time my sister went to England was three years ago.
25. It's four months since I corresponded with my close friend.
26. She hasn't flown to Sydney with him since February.
27. How long is it since you learned English?