1 . 语法专练
1. Tom wishes that he __________(study) law instead of history when he was in university.
2. The student insisted that he __________(try) his best and he insisted that he __________ (praise).
3. I __________(attend) my cousin’s birthday party last night, but I was not available.
4. They stared at me as if I __________(come) from the outer space.
5. He suggested we __________ (appeal) to the high court against the sentence.
6. —Do you want to drive out?
—No. I’d rather we __________(take) a taxi.
7. But for your instruction, I __________(not make) such great progress.
8. His ship was delayed because of the heavy fog yesterday; otherwise I __________ (pick) him up on time.
9. __________ I followed your advice, I would have had no trouble with my exam.
10. It’s a pity that her husband __________ (attempt) to deal with this problem in such a stupid way.

2 . （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.