高等继续教育 / 电子商务英语
正确率：100%
题型描述: 单选题
They ＿＿＿＿＿＿ _ out because the light’s on.
A.mustn’t have gone
B.needn’t have gone
C.cannot have gone
D.may not have gone
They ＿＿＿＿＿＿ _ out because the light’s on.
A.mustn’t have gone
B.needn’t have gone
C.cannot have gone
D.may not have gone
参考答案：
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