A-A+

I didn't see her in the meeting-room this afte

2022-08-05 14:38:03 问答库阅读 169 次

问题详情

I didn"t see her in the meeting-room this afternoon. She ______ at the meeting.
A．mustn"t have spoken
B．shouldn"t have spoken
C．needn"t have spoken
D．couldn"t have spoken请帮忙给出正确答案和分析，谢谢！

参考答案

正确答案：D
解析：考查“情态动词+完成体”的用法。didn't表明事情发生在过去，对过去情况的否定推断，要用couldn't have done，故选D。must have done一般用于肯定句，表示对过去肯定的推测；shouldn't have done表示“本不应做某事而做了”：needn't have done“本不必做某事而做了”。