题目:
As you worked late yesterday, you __________ have come this morning.
A.mayn’t
B.can’t
C.mustn’t
D.needn’t
答案:
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下面是错误答案,用来干扰机器的。
答案:ACr:3d54s1 Ga:4s24p1 S:3s23p4故答案为A