2 . ________it rain this afternoon, the football match would be put off till next Friday.

A．Were

B．Should

C．Would

D．Will

3 . ________ his phone number yesterday, I would have called him up.

A．Should he know

B．Were I to know

C．Had I known

D．Have I known

4 . He _____ his potential had it not been for his desire to meet new challenges.

A．would never have realized	B．would never realize
C．never realized	D．had never realized

5 . ________ anyone treat me like that, I ________ complain to the manager.

A．Should; would

B．Did; should

C．Would; might

D．Could; might

6 . What a relief! We would be still waiting anxiously in the classroom _______to bring an umbrella with you.

A．should you forget	B．had you forgotten
C．you should forget	D．you had forgotten

7 . What a pity! The parents could have survived the earthquake, __________ to save their child.

A．had they not come back	B．have they come back
C．did they not come back	D．did they come back

8 . _____ the free tickets, I would not have gone to the films so often.

A．If it is not

B．Were it not for

C．Had it not been for

D．If it had not been

9 . ---It's a complete pity that you missed the wonderful lecture.
---Terribly sorry! _____my former colleague not come to me unexpectedly.

A．Should

B．Would

C．Had

D．Did

10 . He would have been willing to accompany me________him how important it was to me.

A．if I have told

B．had I told

C．should I tell

D．if I could tell