题目内容

【题目】–When _______ your mother _______ you that blue dress, Lucy?

–Sorry, I really can’t remember. Maybe two or three weeks ago.

A.will; buy B.does; buy C.did; buy

【答案】C

【解析】

试题分析:由答语two or three weeks ago,可知买裙子发生在过去,故用一般过去时。buy是一个实义动词,在过去时中,一般疑问句时需要借助助动词did。故选C

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