1 . （2017•江苏） _______ not for the support of the teachers, the student could not overcome her difficulty.

A．It were	B．Were it
C．It was	D．Was it

2 . — Helen, are you going to the airport to pick up Jack the day after tomorrow?
— ________ tomorrow night, I would go.

A．Were he to come back	B．If he was about to come back
C．Had he come back	D．If he would come back

3 . 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

4 . ________ 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

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

A．Was he leaving

B．Were he to leave

C．Would he leave

D．He leaves

6 . ________ anyone come to my office, please tell them I'm not available before four o'clock.

A．Might	B．Could
C．Would	D．Should

7 . ________ you decide not to receive our information via email any longer, just click the link below to be removed from our list.

A．Should

B．Must

C．Could

D．Would

8 . _________ every student aware of the importance of study, they would study efficiently.

A．Were

B．Should

C．May

D．Had

9 . ____ you come across Tom, tell him I could visit him recently．

A．Should

B．Would

C．Could

D．Might

10 . _______the strong winds continue, part of the highway would still be temporarily closed.

A．Could

B．Would

C．Should

D．Might