UNIT 9: NATURAL DISASTERS
I. Change the following sentences into the passive voice. (chuyển sang câu bị động) 1. People spend a lot of money on advertising every day.
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2. Marry is cutting the cake with a sharp knife.
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3. The police haven’t found the murderer yet.
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4. They sold one of her paintings at $1,000.
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5. Tom was writing two poems.
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6. After class, one of the students always erases the chalk board.
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7. She often takes her dog for a walk.
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8. Nobody has ever treated me with such kindness.
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9. Will you invite her to your wedding party?
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10. Is she making big cake for the party?
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11. Has Tom finished the work?
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12. Must we finish the test before ten?
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