新编英语语法教程 第17讲 练习参考答案Ex. 17A1. can type 2. can answer 3. could never understand 4. could solve 5. (What you say) might be 6. Shall I open? 7. will come 8. Would you have? 9. will put 10. will sit 11. would hit 12. sould sit 13. You should read 14. We must read 15. You must not smoke 16. Can you do 17. Should we wait? 18. We need not attend 19. That will be 20. that must beEx. 17Ba) 1. neednt (= dont have to, dont need to, havent got to)2. wont have to3. didnt have to (= didnt need to)4. neednt5. didnt have to6. didnt have to7. neednt8. neednt9. wont have to10. needntb)11. You had to12. He wasnt to13. He wasnt to14. You had to15. He said I wasnt to16. They had to.17. We had to18. I wasnt to19. He said you werent to20. We had toEx. 17C1. should 2. should 3. Would, should 4. would 5. should 6. would 7. should, would 8. should 9. should 10. would, would 11. should 12. would, would 13. should 14. would, would 15. should 16. should 17. Should 18. would, should 19. would 20. should, should / wouldEx. 17D1. He may be doing his homework.2. She may have forgotten to call me back.3. Could you lend me 5 pounds until tomorrow?4. I wonder if I could leave now.5. It might rain this evening.6. Old Tom might have left San Diego.7. If it should rain tomorrow, the football match would be put off.8. You should do as he says.9. If you should change your mind, please let me know.10. Im surprised that he should have an accident.11. Shall I go with you?12. You shant answer her back again.13. You mustnt violate the traffic regulations again.14. He must have got lost in the mountains.15. You neednt go and see him.16. You neednt have written to her.17. You should have helped her.18. If you would change this car, I should be very grateful.19. Would you mind shutting the door?20. She shouldnt have bought that house.21. Its odd that she should say that.22. Dont call him. Hell be taking a nap.23. Dont write to him. He wont be home now.24. Dont bother him. He will have heard the news.25. A lion will attack people only when hungry.26. What will you do after graduation?27. Mary ought to be home by now.28. You oughtnt to have bought a new car.29. He used to work in Shanghai, but now he is nowhere to be found.30. How dare you say that in the presence of the principal?Ex. 17E1. He may be working for Simons.2. He may have been working for Simons.3. He may be retiring next year.4. He wont be working now.5. Hell have heard it by now.6. They may have been wondering what to do.7. He cant have lost it.8. They must be waiting.9. That might be true.10. She should be home by now.11. She may have left it at home.12. I may have been mistaken.13. You must have been disappointed.14. She wont have heard the news yet.15. There must have been a mistake.16. He wont be there.17. He cant be there.18. He couldnt have made that mistake.19. Will this be the one you want?20. You will have been wondering all this time how it works.Ex. 17F1. may 2. might have 3. may have 4. possibly 5. possible 6. perhaps 7. might 8. can 9. may have had 10. could 11. might be