选择: Your mother bought a gift for you yesterday,____ ? A.did you B.didn't C.didn't she D.did she

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选择: Your mother bought a gift for you yesterday,____ ? A.did you B.didn't C.didn't she D.did she

C.didn't she

应该为did't you? 陈述部分肯定式+疑问部分否定式 可记为 前肯后否