按要求改写句子。
1. I can hear with my ears. (否定句)
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2. He's running to his classroom. (一般疑问句)
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3. The cat has small ears. (一般疑问句)
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4. I can show you my new bike. (否定句)
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5. I'm running to the hall. (就划线部分提问)
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