题目内容
(请给出正确答案)
[主观]
They______informed, or they would get here on time.A.mustn't have beenB.shouldn't have bee
They______informed, or they would get here on time.
A.mustn't have been
B.shouldn't have been
C.can't have been
D.needn't have been
请帮忙给出正确答案和分析,谢谢!
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