问题
选择题
He ______ sleep, although he tried to, when he got on such a hunt for an idea until he had caught it.
A.wouldn’t
B.shouldn’t
C.couldn’t
D.mustn’t
答案
答案:C
题目分析:考查情态动词:句意:当他寻找自己一直想找的主意的时候,虽然他努力了,但是他睡不着,。A. wouldn’t不愿,B. shouldn’t不应该,C. couldn’t 不能,D. mustn’t禁止。选C。