II. Change the following sentences from active into passive.
1. Nam saw her yesterday.
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2. The teacher gives us a lot of exercises everyday.
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3. He taught English here ten years ago.
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4. We eat this food every week.
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5. The police didn’t arrest the thief yesterday.
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6. They sold one of her own paintings at $ 1,000.
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7. Nam bought a new bike last week.
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8. They met their old friends at the railway station this morning.
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9. She doesn’t know any languages .
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10. Did the teacher give many exercises?
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11. Mary made a big cake yesterday morning.
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12. They wrote to us about this last week.
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13. Mr.Smith didn’t teach us French last year.
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14. They didn't look after the children well.
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15. Nobody swept this street last week.
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16. People don’t drink a lot of tea in England.
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17. Do people speak English all over the world?
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18. Did they change the window of the laboratory?
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19. She often takes her dog for a walk.
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20. How did the police find the lost man?
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21. Somebody took some of my books away.
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22. They finished their work at ten this morning.
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23. People spend a lot of money on advertising everyday.
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24. They used this room for the classroom last year.
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28. The teacher often tell us a story at the weekend.
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29. She often eats ice cream after meals.
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30. The police didn’t find the thief yesterday.