问题

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
B:shouldn’t
C:couldn’t
D:mustn’t
正确答案是:
同类题型
I know you want to borrow money but I have _____athand myself
I believe this is the best movie of the year.— Well, .Anyway, the ending is OK.
Did you get home a little earlier yesterday—No It was six o’clock________ we got home
oy the scenery, Sara would spend long hours on the train______ travel by air
He used to ________very late, but now he isused to __________early.