If he ______ it, he _______ it.
#88200
A
had seen; could have believed
B
saw; couldn’t believe
C
saw; couldn’t have believed
D
has seen; had believed
推荐题目
With lots of papers to read, he ____________ to the cinema.
#87258
A
mustn’t
B
mustn’t have gone
C
couldn’t go
D
couldn’t have gone
  _____, we would go on a picnic.
#87969
A
The weather is fine
B
Should the weather be fine
C
The weather be fine
D
Would the weather be fine
— Why didn’t you give a hand to the boy?— I _______, but he strggled to his feet before I tried to.
#89488
A
would like to have
B
would like to
C
would rather to have
D
would better
 If only I ________ driving before. 
#86751
A
learn
B
learned
C
had learned
D
would learn