题目

. — ____ I know your name ?    — Sorry , you ____ . A . May ; mayn''t    B . May ; can''t   C . Must ; mustn''t   D . Need ; must 答案：C 解析: “should + have +p . p”表示过去本应该做而实际未做之事，有抱怨、责备之意。C

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