题目内容

【题目】You must have seen him off yesterday, _________?

A. haven't you B. didn't you

C. mustn't you D. needn't you

【答案】B

【解析】

考查反义疑问句。句意:你昨天一定送他走了,是吗? must have done表示对过去的情况进行推测(一般句中有明确的过去时间状语),本题中yesterday是提示,问句要根据陈述部分谓语的情况用“didn't+主语”或“wasn't/weren't+主语”,故选B。

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