1 . I’m sorry. ________ for my illness, I would have come and lent you a helping hand.

A．Were it not

B．If it were not

C．Had it not been

D．If has not been

2 . ________ for the doctor’s careful treatment, he ________ till last year.

A．If it were not, can’t live

B．Were it not, couldn’t live

C．Had it not been, couldn’t have lived

D．If they were not, couldn’t live

3 . ________ the danger of traveling on the lonely island, they would not be trapped now.

A．Have they been informed of	B．Were they informed of
C．Should they be informed of	D．Had they been informed of

4 . ______ 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

5 . ________ more energy to my study instead of being crazy about Internet Games, I would have passed the final examination.

A．If I devoted	B．Had I devoted
C．Would I be devoted	D．Should I be devoted

6 . The celebration is to begin at 9:00 a.m., but we would put off our plan, ________ a sudden storm.

A．there was	B．should there be
C．was there	D．there should be

7 . _____________ cease(终止) advertising, prices would be significantly reduced.

A．Were they to	B．Could they
C．If they	D．Would they

8 . ______ today, he would get there by Friday.

A．Was he leaving

B．Were he to leave

C．Would he leave

D．He leaves

9 . Had he predicted the disaster, he wouldn’t have gone to the 2015 New Year’s celebration at the Bund, Shanghai. Luckily he ________ the accident..

A．had survived	B．survived
C．would have survived	D．would survive

10 . ______ ever find something you want to save on your own computer, you can download it.

A．Should you	B．If should you
C．If you will	D．Will you