问题
Had I known about this computer program, a huge amount of time and energy ________.[ ]
A: would have been saved
B: had been saved
C: will be saved
D: was saved
B: had been saved
C: will be saved
D: was saved
正确答案是：
同类题型
at there are still some problems remaining______, we have to work extra hours tonight.
I don’t like fish, so I _____eat it unless I was extremely hungry.[ ]
I’m much too busy now. Could you give me a hand, please
Nowadays, more and more people choose to drink alcohol to escape the _____ caused by heavy work.