Change the following sentences into passive voice: We will grow a lot of trees in the parks

II . Change the following sentences into passive voice .
1. We will grow a lot of trees in the parks.
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2. They are painting the living- room light blue.
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3. People have developed many different paper products.
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4. He asked us many difficult questions.
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5. They must widen this road soon.
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6. She advised me to reuse milk bottles.
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7. My sister cleans these rooms every day.
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8. Wastes from chemical factories have caused a lot of pollution.
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9. When does he usually do his homework ?
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