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be+动词过去式是什么语态have+动词过去式呢例;hehasplayedinalmosteverylargecity.

题目详情
be+动词过去式是什么语态
have+动词过去式 呢
例;he has played in almost every large city.
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答案和解析
表被动适用于动作发生人不明的情况,如He was killed last night .他昨晚被杀了(凶手不明)