2 . If it should rain tomorrow, we would not go climbing.
＝________it rain tomorrow, we would not go climbing. (同义句转换)

4 . We would have won if we had trained harder.（句型转换）
___________ we __________ harder, we would have ___________.

5 . 根据句意，用适当的情态动词、虚拟语气填空
1. It is raining heavily outside. You ____________ as well stay here for the night.
2. But for the timely help of the PLA man that day, you ____________(kill) in the car crash.
3. I’m very busy with my Mid-term examination, or I __________ (go) to see the movie with you.
4. While taking exams, a student _________ never be too careful to get high grades.
5. — Tom has arrived. _________ he come in to see you?     —Yes, of course. Call him in.
6. Why are you here? It’s class time and you __________ be in the classroom now.
7. Had you studied harder at college, you __________(get) a better job now.
8. You _________(not) sit in this part. It’s for women and children only.
9. — Let’s go to see a film.   — Why today. I’d rather we __________ (see) a film tomorrow.
10. The old man treated the boy as if he _________ his own son.

6 . ---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

7 . Punishments would be severe, ranging from a few years in prison to the death penalty _______ a person be caught carrying drugs.

A．should

B．would

C．could

D．might

8 . ___________ ten years younger, I would study abroad.

A．If were I

B．I were

C．Were I

D．Was I

9 . She wouldn’t have flown off the handle _____the fact that you didn’t intend to hurt her.

A．were she to know	B．had she known
C．did she know	D．should she have known

10 . Lucas failed his driving test again. ________ harder, he ______ the test now.

A．If he practiced; would pass

B．Had he practiced; would pass

C．Did he practiced; would have passed

D．Should he practice; would have passed