-She looks very happy. She have passed the exam.-I guess so. It’s not difficult after all.A. should B. could C. might D. must 题目和参考答案——青夏教育精英家教网—

题目内容

—She looks very happy. She ____have passed the exam.

—I guess so. It’s not difficult after all.

A. should B. could C. might D. must

【解析】

试题分析：考查情态动词。本句考查情态动词表猜测。情态动词表猜测有以下情况：表肯定猜测用must、表否定推测用can’t、couldn’t；表可能用may、might;疑问句中表可能用can、could；表应该用should。本句中根据she looks very happy可知她看起来很开心，所以下文是很肯定的猜测，她肯定通过了考试。故选择D。

考点：考查情态动词

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