Bài 1. Change these sentences into passive voice

1. They started a dancing class last week.

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2. Mr. Smith saw the accident.

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3. The teacher returned our written work to us.

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4. The mad dog bit the little boy.

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5. The doctor ordered him to take a long rest.

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6. They don't use the room very often.

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7. Did you finish your work early?

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8. The waiter brings me this dish.

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9. Our friends send these postcards to us.

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10. They keep this room tidy all the time.

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11. They moved the fridge into the living room.

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12. She feeds her dogs twice a day.

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13. He bought the new car in New York

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14. someone took her raincoat this morning

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15. where did you find this book ?

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16. John prepares his lesson carefully

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17. A lot of students attend her class every day

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18. Her father gave her a gold watch

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19. The students plant those trees

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20. He painted all the doors yesterday

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