（1）Looks like rain.
（2）Hope to hear from you soon.
（3）Sounds like a good idea.
（4）Beg your pardon.
（5）Feeling better today ?
（6）This way, please.
（7）—What does he want to eat ?
—Some rice and vegetables.
（8）Anything I can do for you ?
（9）Sorry to hear that.
（12）Pity you couldn’t come.
（1）They learn French and we English.
（2）My father planned and built all these houses.
（3）John won the first race and Jimmy the second.
（4）Coral is not a plant but a variety of animal life.
（1）That’s the reason he is late for the conference.
（2）I don’t like the way he talks.
（1）If heated, water will boil.
（2）Tom was attacked by cramp while swimming across the river.
（3）We’ll go to help you if necessary.
（4）Had I time, I would come.
（5）I’ll go, should it be necessary.
（6）The captain can find a boat quicker than we can.
（1）We will do what we can（do）to help you.
（2）—Is Mr. King in his office?
—Sorry, I don’t know（whether he is in his office or not）.
（1）—Would you like to go with us ?
—I’m glad to, but I have to finish my homework.
（2）Don’t tell me the name of the sailor if you don’t want to.
（3）—Have you ever been to the seaside?
—No, we can’t afford to.
在used to, ought to, have to, would like/love to, wish to, be going to等结构中，常常省略to后面的动词原形。
（1）They do not visit their parents as much as they ought to.
（2）He doesn’t get up early as he used to.
（3）I’ll hand it in if I have to.
（4）—Would you like to come tonight ?
—I’d love to.
Tell , warn , order , advise , ask等动词的宾语后面接动词不定式做宾语补足语时，可以省略to后面的动词原形。
（1）He wanted to swim across the river but I warned him not to.
（2）The boy wanted to play football in the street, but his mother told him not to.
1. _____, I will help you with your work.
A. If I am possible B. If it possible C. If possible D. Possible
2. —Do you follow me? —Yes, _____.
A. it is good B. I will C. perfectly D. very good
3. —How are you getting on with your work?
—Oh, I’m sorry. Things aren’t going so well as _____.
A. plans B. planning C. planned D. to plan
4. —Are you a teacher?
—No, but I _____. I worked in a middle school for three years.
A. am B. will C. do D. was
5. —How many poor counties will there be in our province by 2010?
—There will be only a few, if _____.
A. much B. some C. any D. many
6. —Why didn’t you come to Mike’s birthday party yesterday ?
—Well, I_____, but I forgot it.
A. should B. must C. should have D. must have
7. Doctors have said that as many as 50% of patients don’t take medicine _____.
A. like directed B. to be directed
C. as directed D. so that directed