Change the following sentences into passive voice or vice versa

Exercise 4. Change the following sentences into passive voice or vice versa.
1. Nobody has used this bike for ages.
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2. Don’t speak until someone asks you.
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3. Someone accused Sean of selling secret information to our opponents.
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4. Is Mr. Baker writing a report about the market situation?
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5. By the time we got to the garage, they had served our car. 
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6. They are going to ask you some difficult questions at the interview.
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7. You have to learn by heart all the grammar rules.
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8. The Vietnamese government will make more progress in gender equality. 
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9. The patients were examined by the doctor an hour ago.
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10. The books are arranged into sections by the librarian.
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