1. Nam saw her yesterday.

………She was seen yesterday……………………………………………………………..

2. The teacher gives us a lot of exercises everyday.

…………We are given a lot of exercises by the teacher everyday…………………………………………………………..

3. He taught English here ten years ago.

……English is taught here ten years ago.………………………………………………………………..

4. We eat this food every week.

………This food is eaten every week.……………………………………………………………..

5. The police didn’t arrest the thief yesterday.

……The thief wasn't arrested by the police yesterday………………………………………………………………..

6. They sold one of her own paintings at $ 1,000.

………One of her own paintings was sold at $ 1,000. ……………………………………………………………..

7. Nam bought a new bike last week.

………A new bike was bought by Nam last week……………………………………………………………..

8. They met their old friends at the railway station this morning.

……Their old friends were met at the railway station this morning.………………………………………………………………..

9. She doesn’t know any languages .

………No languages is known by her……………………………………………………………..

10. Did the teacher give many exercises?

……Were many exercises given by the teacher………………………………………………………………..

11. Mary made a big cake yesterday morning.

……………A big cake was made by Mary yesterday morning. ………………………………………………………..

12. They wrote to us about this last week.

………We were written about this last week……………………………………………………………..

13. Mr.Smith didn’t teach us French last year.

…………We weren't taught by Mr Smitch last year…………………………………………………………..

14. They didn't look after the children well.

……The children weren't looked after well………………………………………………………………..

15. Nobody swept this street last week.

……This street was swept last week………………………………………………………………..