Put these sentences into passive voice

1. Someone saw him pick up the gun.
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2. We know that you were in town on the night of the crime.
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3. You needn’t have done this.
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4. He likes people to call him "sir”.
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5. Don’t touch this switch.
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6. You will have to get someone to see to it.
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7. They used to make little boys climb the chimneys to clean them.
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8. You have to see it to believe it.
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9. You order me about and I am tired of it.
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10. He doesn’t like people laughing at him.
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11. You don’t need to wind this watch.
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12. People believe that he was killed by terrorists.
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13. They said that the man had escaped from the prison.
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14. They are to send letters to the leaders of charitable organizations.
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15. We don’t allow smoking.
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16. They urged the government to create more jobs.
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17. They rumour that she is working for the enemy.
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18. It is a little too loose; you had better ask your tailor to take it in.
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19. Before they invented printing people had to write everything by hand.
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20. People used to light their house with oil lamps 50 years ago.
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21. Who did you deliver the goods to?
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22. Where did you put those important documents?
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23. It’s your duty to answer our questions.
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24. Fix this machine at once.
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25. Don’t throw rubbish in the street!
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26. They said that the government would raise taxes.
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27. People believe that there are aliens on other planets.
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28. She has known that her company will employ more people.
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29. It is students’ duty to learn hard.
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30. I know that my mum is writing a new novel.
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