She have attended that meeting, for she was doing paperwork in the office then.
A. shouldn’t
B. mustn’t
C. wouldn’t
D. couldn’t
网友回答
A. shouldn’t
B. mustn’t
C. wouldn’t
(答案→)D. couldn’t
解析:句意:她不可能参加那次会议,因为那个时候她正在办公室写文件。shouldn’t 不应该;mustn’t禁止;wouldn’t表示意愿;couldn’t不可能,选D。