Put the following sentences into the passive voice

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III. EX: Put the following sentences into the passive voice:
1. People consider The Imperial Academy the first university.
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2. We usually do our exercises carefully.
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3. They grow many flowers and trees in my school every year.
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4. Yesterday the thieves stole everything in her house.
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5.I boughtthis laptoplast year
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6.We didn'tuse this computer last year.
7. His parents don'thelp him with his homework.
8. Why do you take care of your students?
9. How did Mr Hung help you?