The earthquake ______ not have come at a worse time for the war-torn country.A、c

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问题 The earthquake ______ not have come at a worse time for the war-torn country.

选项 A、could
B、must
C、would
D、might

答案 A

解析情态动词。could not have done表示对过去事实准确的否定猜测；must have done不能用于否定句；would have done表示与过去事实相反；might not have done表示对过去事实把握不大的猜测。根据句意判断应选A。

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