He must have been late for the conference yesterday, _________

单选题 He must have been late for the conference yesterday, __________ ?

A．didn't he
B．haven't he
C．mustn't he
D．wasn't he

参考答案D

解析:【参考译文】昨天的会议他迟到了，不是吗?
【答案解析】本题考查反意疑问句。情态动词表推测，后面的反意疑问句应该与实际时态一致。用must have done表示“对过去加以推测”时，其附加疑问部分要根据must后的动词形式和有无时间状语来确定时态。此句中动词是be，时间是yesterday，所以用wasn’t he。如果去掉yesterday，就应选B项。

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A．To judge from
B．Judging from
C．Judged from
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A．more warm
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A．were searching
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C．were searching for
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