IV. Rewrite the sentences, using passive voice

1. You ought to water the plants once a week. 

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2. The mailman is delivering the mail now. 

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3. They’re going to build a new hospital. 

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4. Someone should tell Sally what happened. 

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5. Nobody will solve this hard problem. 

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6. Bad weather has delayed Flight 202 from Miami. 

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7. They gave us a post card.

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8. Did they build this monument ten years ago?

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9. They had a policeman check her hand bag.

10. My teacher made me do exercise everyday.

11. People thought that he had escaped from prison.

12. People believe that the earth is round.

13. People thought that they were doing a very important research.

14. Are Nam and Ba painting the fence? 

15. Are my parents going to buy a new TV tomorrow?