问题

(2013·湖南高考)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

正确答案是：

同类题型

Imy father smoking successfully.

下列各句中，表达得体的一句是（）

Colors like red a sense of energy and strength. [ ]

Too much work made us tired.

Must I stay here till you come back—No, you ________.