问题

She looks very happy. She ________have passed the exam. –I guess so. It’s not difficult after all.
A:should
B:must
C:could
D:might
B:must
C:could
D:might
正确答案是:
同类题型
It was a pity that the great writer died ______ his work unfinished.
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Either you or one of your students________ to attendthe meeting that is due tomorrow.
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