——Yesterday, I didn’t see Ben at the party.   —— You _____ him. We just came back from Beijing this morning. 
#87561
A
mustn’t have seen
B
needn’t have seen
C
couldn’t see
D
can’t have seen
推荐题目
It is my suggestion that the English program _____after supper.
#87471
A
broadcast
B
should broadcast
C
be broadcast
D
is broadcast
I insisted that a doctor ________ immediately.
#86728
A
has been sent for
B
sends for
C
be sent for
D
will be sent for
This vase ________ perfect but for a few small holes in its base.
#86632
A
would have been 
B
should have been
C
shall be 
D
would be