--The man in a black suit _______ be our youth worker.--- I’m sure it _______ be him. I saw him in the laboratory building some minutes ago.
#75725
A
must; can’t
B
can; mustn’t
C
can; could
D
must; won’t
推荐题目
My computer ____start, no matter how hard I try.-lt might have crashed.
#62243
A
won't
B
shouldn't
C
mustn't
D
wouldn't
---I was trying to carry out the plan, but I failed.---Well, you _____, for we were uncertain it would do ____.
#63211
A
needn’t do that, in fact
B
needn’t have done, in effect
C
needn’t have, in practice
D
needn’t, in time
(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.
#62396
A
wouldn't
B
shouldn't
C
couldn't
D
mustn't