Change the following sentences into passive coice.
1. Why didn't they turn on the lights?
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2. You should pay more attention to your duty
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3. They have seen him in the school yard
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4. The teacher wont correct exercises tomorrow
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5. They didn't invite me to the brithday party
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6. She asked her mother to let her go
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7. They began to build the house last year
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8. The tailor has just made a new suit for me
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9. Don't do that silly thing again.
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10. She didn't introduce me to her mother
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