问题
选择题
As you worked late yesterday, you _____ have come this morning. [ ]
A. mayn't
B. can't
C. mustn't
D. needn't
答案
答案：D
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As you worked late yesterday, you _____ have come this morning. [ ]
A. mayn't
B. can't
C. mustn't
D. needn't
答案：D