Change the following sentences into passive voice.
1. Mark Twain wrote "Life on the Mississipi"
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2. People must repair that old building
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3. My aunt made this sweater for her son.
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4. Lan is going to invite him to her birthday party.
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5 Minh is feeding the dog. ……………………………………………………………………………………………
6. You should send this letter this afternoon.
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7. The police has just caught the thief
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8. She teaches us grammar and writing.
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9. Phong has to return the scientific book to the library.
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10. Farmers grow rice in Viet Nam.
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11. Lan gave her mother a new scarf on her 45th birthday last week
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12. No one has cleaned that room for ages.
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13. Lien couldn't open the door of the classroom.
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14. My father is going to build the cage .
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15. My sister was playing chess when the phone rang.
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16. I have my sister do my homework.
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17. Linh got her parents to buy a motorbike.
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18. Who invented the telephone?
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19. People say that he is the best doctor.
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20. People say that he eats five bowls of rice .
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21. Nobody has used this bicycle for many years.
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22. They thought that Mai had gone away.
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Change into passive:
1. Mark can't have stolen the money.
=>The money can't have been stolen by Mark
2. We should have informed the police
=>The police should have been informed
3. Maria might could have made a mistake
=>A mistake could have been made by Maria
4. The truck could have killed you
=>You could have been killed by the truck
5. He might have painted this picture before the war.
=>This picture might have been painted before the war
6. The police must have arrested the criminal by now.
=>The criminal must have been arrested by the police by now
7. They should have called the doctor immediately
=>The doctor should have been called immediately
8. She can't have invited her former husband
=>Her former husband can't have been invited
9. The fire may have damaged the house.
=>The house may have been damaged by the fire
10. He must have paid the electricity bill
=>The electricity bill must have been paid