-- Who do you think _____ such a foolish thing?-- It _____ Tom, but I’m not sure.
#62680
A
could have done; may have been
B
could have done; must have been
C
should have done; may be
D
must have done; might have been
推荐题目
—Could I please use your computer?—             .
#63566
A
Yes, I can.
B
Yes, you can’t
C
Sorry, you can’t
D
No, I can’t.
You ________ come tomorrow. I can do it myself.
#76439
A
needn’t
B
mustn’t
C
can’t
D
shouldn’t
We         arrive at six. But I’m sorry we are late. 
#63290
A
should
B
were supposed to
C
must
D
ought to