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英语
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Each book____broken down into several units.在空白处应该填is,was,has还是have?为什么?
人气：494 ℃ 时间：2020-06-05 18:26:34
解答
填 is
Each book is broken down into several units.
每本书都被划分到特有的单元.
这是个被动不能用 has,have.这又在说一个现在的状态,用一般现在时.所以填：is.
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