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题目内容
（山西财经大学英语3）
：—It’s already 11 o’clock , and he ______ have been here half an hour ago.
—Maybe he got caught in the rain.
A. must
B. ought to
C. may
D. can
—Maybe he got caught in the rain.
A. must
B. ought to
C. may
D. can
参考答案
