按要求写句子。
1. We should throw them away.(改为否定句)
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2. Jim puts them into a bag.(改为现在进行时)
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3. Do you have an English book?(作否定回答)
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4. big This a is class(.) (连词成句)
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5. There are twenty-two boys in my class.(对画线部分提问)
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