Had I known about this computer program, a huge amount of time and energy________.
#87046
A
would have been saved  
B
had been saved
C
will be saved
D
was saved
推荐题目
---My little daughter is coughing worse than ever. ---She ______ to the hospital yesterday.
#86468
A
had to be taken
B
should have taken
C
must have been taken
D
ought to have been taken
----I failed again. I wish I _________ harder.---But you _________.
#86994
A
had worked; hadn’t
B
worked; didn’t
C
worked; don’t 
D
had worked; didn’t
You didn’t let me drive. If we____in turn, you___ so tired. 
#89622
A
drove; didn’t get
B
drove; wouldn’t get
C
were driving; wouldn’t get
D
had driven; wouldn’t have got