You______her in her office last Friday; she’s been out of town for two weeks.A、n

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问题 You______her in her office last Friday; she’s been out of town for two weeks.

选项 A、needn’t have seen
B、might have seen
C、must have seen
D、can’t have seen

答案 D

解析 can’t have done表示对已发生的情况作否定推测“一定不是／没……”，根据句意只能选D。

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