Opposite voice
1. thirty houses were destroyed by the tornado
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2. You have to put your pen in a box
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3. our school must be kept clean and tidy
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4. the door was being removed by some workers when we arrived
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5. the students will finfish the course bu july
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6. the sueers are being repaired this month
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7. the building must be restored
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8. her hair is being dyed at the moment
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9. you can make reservation by dialing 001 now
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10. they have emptied the dustbins recently
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