TL:
Rewrite these following sentences keep meaning as the root one.
1. John smoked a lot a year ngo ,but now he doesn't smoke any more.
>John used to smoke a lot but now he doesn't smoke any more
2. It's time for you to go to school.
>It's time you went to school
3. How long is It since you saw Tom?
>When did you last see Tom
4. please keep silent in the classroom. >I'd rather you kept silent in the classroom
5. He can't pass the examination. > He wishes he could pass the examination
6. We can't go out because of heavy rain. > We wish we could go out.
7. I don't like you to come to class late. > I'd rather you didn't come to class late
8. What a pity! He can't come here. >I wish he could come here
9. They often go to Vung Tau at the weekens. ->They used to go to Vung Tau at the weekends
10. I'm sorry I can't help you. -> I wish I could help you
11. We have learnt english for 4 years. ->We started learning English 4 years ago
12. My father started to give up smoking last year. ->My father hasn't smoked fir a year
13. They have worked in that factory since 2001. ->They started working in that factory in 2001
14. I haven't seen her for a long time. >I didn't see her a long time ago
15. How long have you learnt french? > How long ago did you learn french?