Had we assisted him , he ________ us a hand ________ today . 
#87888
A
would have given ; in exchange
B
should give ; to exchange
C
could give ; in exchange
D
might have given ; to exchange for
推荐题目
I was caught in a traffic jam for over an hour, otherwise I ________ you waiting for such a long time.
#86683
A
will not keep
B
have not kept
C
had not kept
D
would not have kept
You _____ practise the drums while the baby is sleeping. 
#89558
A
needn’t
B
mightn’t
C
mustn’t
D
won’t
Five minutes earlier, and we______the last bus.
#86702
A
had caught
B
should have caught
C
could have caught
D
caught