【推荐1】—Helen, are you going to the airport to see Jack off the day after tomorrow?
—________(be) he to leave tomorrow, I would go. （所给词的适当形式填空）

【推荐2】________ he leave today, he would get there by Friday. （用适当的词填空）

【推荐3】单句语法填空
1. Bob risked ______ (lose) his job to disclose the dishonest behavior of his boss.
2. You have known what the topic is going to be, so please prepare what you would like to say ______ advance.
3. ______ (assume) the proposal is accepted, when are we going to get the money?
4. Seeing her son ______ (play) an online game, the lady shouted at him angrily.
5. ______ (aware) of the problem is the first step toward solving it.
6. Grace doesn’t want to move to New York because she thinks if she ______ (live) there, she wouldn’t be able to see her parents very often.
7. By the time he returned to his hometown almost a year later, his house ______ (destroy).
8. The hospital has recently obtained new medical equipment, ______ (allow) more patients to be treated.
9. I found Jane ______ (seat) at the desk, doing her homework carefully.
10. ______ impressed us most is how generous the natives were to us.

【推荐1】______ (shall) he come, the problem would be settled. (所给词的适当形式填空)

【推荐2】用所给词的适当形式填空（虚拟语气）
1. We ____________（be）back in the hotel now if you hadn't lost the map.
2. __________ he not ___________（hesitate）for a moment before kicking the ball，he would have scored a goal.
3. If you __________( inform）me of your birthday，I would have bought a birthday cake for you.
4. __________（be）there no modern telecommunications，we would have to wait for weeks to get news from around the world.
5. They were abroad during the months when we were carrying out the research，or they __________（participate）in the project.

【推荐3】（1）________(have)the governments and scientists not worked together，AIDS­related deaths would not have fallen since their highest in 2005.
（2）George can't ________(go)too far.His coffee is still warm.
（3）Why didn't you tell me about your trouble last week？If you ________(tell)me，I could have helped.
（4）—Can't you stay a little longer?
—It's getting late.I really ________ go now.My daughter is home alone.
（5）It was so noisy that we ________ not hear ourselves speak.
（6）You ________ be Carol.You haven't changed a bit after all these years.
（7）You ________feel all the training a waste of time，but I'm a hundred percent sure later you'll be grateful you did it.
（8）You ________ be careful with the camera.It costs!
（9）—Sorry, Mum! I failed the job interview again.
—Oh, it's too bad.You ________ have made full preparations.
（10）I ________have worried before I came to the new school, for my   classmates here are very friendly to me.
（11）If I _______(see)it with my own eyes, I wouldn't have believed it.
（12）Without his wartime experiences, Hemingway ________(write)his   famous novel A Farewell to Arms.
（13）Ellen is a fantastic dancer.I wish I ________(dance)as well as her.
（14）I wish I _______(be)at my sister's wedding last Tuesday, but I was on a business trip in New York then.
（15）It is lucky we booked a room, or we ________(have)nowhere to stay now.