I didn’t see her in the meeting room this morning. She have spoken at the meeting.A. mus

发布时间：2020-08-17 14:30:33

I didn’t see her in the meeting room this morning. She      have spoken at the meeting.
A. mustn’t
B. shouldn’t
C. needn’t
D. couldn’t

网友回答

A. mustn’t
B. shouldn’t
C. needn’t
(答案→)D. couldn’t
解析：couldn’t have done sth 表示对过去情
况进行推测，意为“过去不可能发生过某情况”。
以上问题属网友观点，不代表本站立场，仅供参考！