Wang Qing did not come to the meeting; he ______ the notice on the blackboard since we saw it on our way to the dining-hall.

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问题 Wang Qing did not come to the meeting; he ______ the notice on the blackboard since we saw it on our way to the dining-hall.

选项 A、must not have missed
B、could not miss
C、could not have missed
D、wouldn’t have missed

答案C

解析 表示对过去情况的否定推断,用could(can)not have done。
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