现在完成时:按要求改写下列各句
4.They have bought a computer.(改成否定句)
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5.He has lost his book.
(先改成一般疑问句,再作肯定与否定回答)
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人气：296 ℃ 时间：2019-12-06 02:02:08
解答
4.They haven't bought a computer.
5.Has he lost his book?Yes,he has.No,he hasn't
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