句型转换。

1. I ride a bike to school. (同义句)

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2. I ask my father for a camera. (用last week改写)

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3. Tom lost his new pen yesterday afternoon. (对划线部分提问)

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4. He bought a new house last year. (否定句)

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5. She listened to the radio just now. (一般疑问句)

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