语法精练

　　1. Let’s keep to the point or we ___ any decision.
　　A. will never reachB. never reach
　　C. have never reachedD. never reached
　　2. — What’s that terrible noise？
　　— The neighbors ___ for a party.
　　A. have preparedB. are preparing
　　C. prepareD. will prepare
　　3. The price ___ ， but I wonder whether it will remain so.
　　A. went downB. will go down
　　C. has gone downD. was going down
　　4. — You have left the light on.
　　— Oh， so I have. ___ and turn it off.
　　A. I’ll goB. I’ve gone
　　C. I goD. I’m going
　　5. The first use of this weapon was in 1945， and its power ___ increased enormously ever since.
　　A. isB. was
　　C. has beenD. had been
　　6. When I called you this morning， nobody answered the phone. Where ___ ？
　　A. has you goneB. did you go
　　C. had you beenD. were you
　　7. How can you possibly miss the news？ It ___ on TV all day long.
　　A. has beenB. was
　　C. had beenD. will be
　　8. Barbara is easy to recognize as she’s the only one of the women who ___ evening dress.
　　A. wearsB. wear
　　C. has wornD. have worn
　　9. Teenagers ___ their health because they play computer games too much.
　　A. have damagedB. damaged
　　C. are damagingD. will damage
　　10. — Do you know if Terry will go camping this weekend？
　　— Terry？ Never！ He ___ nature and fresh air！
　　A. has hatedB. hated
　　C. will hateD. hates
　　11. A cook will be immediately fired if he is found ___ in the kitchen.
　　A. smokeB. smoking
　　C. to smokeD. smoked
　　12. People did everything they could ___ wildlife.
　　A. to stop to killB. stop to kill
　　C. to stop killingD. stop killing
　　13. So far this year we ___ a fall in house prices by between 5 and 10 percent.
　　A. seeB. saw
　　C. have seenD. had seen
　　14. There have been several new events ___ to the progam for the competition.
　　A. addB. to add
　　C. addingD. added
　　15. This machine ___ . It hasn’t worked for years.
　　A. doesn’t workB. wouldn’t work
　　C. didn’t workD. wasn’t working
　　16. Customers are asked to make sure that they ___ the right change before leaving the shop.
　　A. will be givenB. will give
　　C. have been givenD. have given
　　17. If their marketing plans succeed， they ___ their sales by 20 percent.
　　A. have increasedB. increased
　　C. will increaseD. would increase
　　18. — Oh， Mrs Lee， your dress looks nice. Is it new？
　　— No， I ___ it since two years ago.
　　A. boughtB. had
　　C. have boughtD. have had
　　19. The dark clouds are getting more and more and it ___ rain.
　　A. was going toB. would
　　C. is going toD. will
　　20. Hundreds of jobs ___ if the factory closes.
　　A. will loseB. lose
　　C. will be lostD. are lo