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

正确答案是：

同类题型

The rain is plentiful in the southeast of the country ,yearly

____________ with care, one tin will last for six weeks.

Barbara oftenmakes a schedule to get herself of what she is to do in the day

a low monthly income，Ni Chao makes up his mind to make a charity donation of l0000 yuan every year

Without facts, we can’t form a correct opinion, for we need to have actual knowledge________ our thinking.