passive voice
3. People prepared enough food and wafer for a disaster.
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4. A tornado hit many houses and buildings.
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5. We had bought some raincoats before we heard the weather forecast.
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6. My father is going to repair our windows tomorrow.
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7. The earthquake damaged almost my entire house.
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8. We should plant more trees to prevent some natural disasters.
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9. My e-pal had told me a story about a tsunami occurring in his country.
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10. A mechanic is going to service my car tomorrow because yesterday's storm damaged it severely.
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passive voice
3. People prepared enough food and wafer for a disaster.
-> Enough food and water was prepared for a disaster.
4. A tornado hit many houses and buildings.
-> Many houses and buildings were hit by a tornado.
5. We had bought some raincoats before we heard the weather forecast.
-> Some raincoats had been bought before we heard the weather forecasst.
6. My father is going to repair our windows tomorrow.
-> Our windows are going to be repaired by my father tomorrow.
7. The earthquake damaged almost my entire house.
-> Almost my entire house was damaged by the earthquake.
8. We should plant more trees to prevent some natural disasters.
-> More trees should be planted to prevent some natural disasters.
9. My e-pal had told me a story about a tsunami occurring in his country.
-> I had been told a story about a tsunami occurring in my e-pal's country.
10. A mechanic is going to service my car tomorrow because yesterday's storm damaged it severely.
-> My car is going to be serviced by a mechanic tomorrow because yesterday's storm damaged it severely.