Had I known about this computer program,
题型:选择题
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
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