【推荐1】If he ______ hard at high school, he ______ a college student now.

A．studied; is

B．had studied; is

C．studied; would be

D．had studied; would be

【推荐2】Words failed me when I heard the news of the New Year’s Eve stampede in Shanghai. But for lacking a sense of safety, so many people __________ killed or injured．

A．couldn’t be	B．wouldn’t have been
C．mustn’t have been	D．shouldn’t be

【推荐3】 ______ for the free tickets, I would not have gone to see films so often.

A．If it is not	B．Had it not been
C．Were it not	D．If they were not

【推荐1】Had I made good use of this software, a huge amount of time and energy _________.

A．would have been saved	B．had been saved
C．will be saved	D．was saved

【推荐2】The printer is of good quality. _____ it break down within the first year, we would repair it at   our expense.

A．Would

B．Could

C．Might

D．Should

【推荐3】I ________ that the experience I was heading for was anything but boring, had I read the brochure carefully.

A．realized	B．had realized
C．would realize	D．would have realized