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He realized she was crying [ ]what he had sad. 【说一下原因】
A,because B,because of C,asD,since
人气:410 ℃ 时间:2019-11-11 21:24:44
解答
B what he had sad.做从句,what是连接词,不用because,as ,since ,只能用because of ,让what 引导的从句作介词宾语.
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