Madonna ____a straight A student,but it was dancing that she was really crazy about.   
#89032
A
must be
B
could be
C
must have been
D
could have been
推荐题目
I was too busy at that time, ________ I would have given you a hand.
#88975
A
even though
B
so
C
otherwise
D
nevertheless
---- Did you visit the Big Ben in London?---- No, we ______ it, but we spent too much time shopping.
#90301
A
could visit
B
could have visited
C
must ahave visited it
D
can have visited
 ——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
What a pity. If I had caught that flight,  I ____ over the Pacific Ocean now.
#87518
A
would fly
B
would have flown
C
would be flying
D
were flying