—She looks very happy. She have passed the exam.—I guess so. It’s not difficult after all

发布时间：2020-08-17 11:30:07

—She looks very happy. She      have passed the exam.
—I guess so. It’s not difficult after all.
A. should
B. could
C. must
D. might

网友回答

A. should
B. could
(答案→)C. must
D. might
解析：句意为：她看上去很高兴，一定是通过了考试。
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