按要求改写句子。1. Can you help him? (肯定句)
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2. He is writing a letter. (就划线部分提问)
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3. They are reading the newspaper. (改为否定句)
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4. Bob is playing football. (改为一般疑问句)
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5. He is cooking meat. (改为一般疑问句)
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6. Is your mother watching TV? (否定回答)
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试题答案
1. I can help him.
2. What's he doing?
3. They aren't reading the newspaper.
4. Is Bob playing football?
5. Is he cooking meat?
6. No, she isn't.