11.　 There are many people here on vacation. (改为反意疑问句)

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10. They are playing games over there. (对划线部分提问)

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9. We are having fun playing volleyball. (改为同义句)

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8. I have a new house and a car. (改为否定句)

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7. What’s the weather like there? (改为同义句)

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6. Sam often studies English in the morning. (用now改为现在进行时)

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5.The children of our class are doing homework in the sitting-room. (对划线部分提问)

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4. Jenny is playing the violin. (改为否定句)

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3. Two students are cleaning the classroom.(改为一般疑问句并作否定回答)

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2. It’s cloudy in Beijing. (对划线部分提问)

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