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省略练习1.The boy wanted to ride his bike in the street, but his mother told him _.A. not to B. not to do C. not do it D. do not to2.The traditional goal of science is to discover how things are, not how they ought _.A. to B. to be C. be D. have been3. Tom wanted to play football with his friends in the street, but his father told him_. Anot to Bnot to do Cnot do it Ddo not to4.-I hope the children wont touch the dog. -Ive warned them _.A. not B. not to C. not touch D. not do 5.Some students are going to China in summer vacation, and _.A.some are to America B. some going to America C. some to America D. some America6. Father advised me not to say anything until_at the meeting. Aasking Bto ask Casked Dask7. Have you watered the flowers?No, but_.AI am BImm going CIm just going to DI will go8. He hasnt gone to the office up to now.Well, he_.Ashould Bought to Cought to go Dought to have9. _, I will help you with your work. AIf am possible BIf it possible CIf possible DPossible10._ the road, dont forget to look both ways.A. As crossing B. While you cross C. While crossing D. Cross11.Chemistry is the science of substances _ the science of energy.A. and is physics B. or is physics C. and physics D. or physics is 12. How are you getting on with your work?Oh, Im sorry. Things arent going so well as_. Aplans Bplanning Cplanned Dto plan13.-Susan, go and join your sister cleaning the yard. - Why _? John is sitting there doing nothing. A. him B. he C. I D. me14. Are you a volunteer now?No, but I _. I worked for the City Sports Meeting last year.Aused to Bused to be Cused to do Dwas used to15.-You must obey every word of mine. -_ I dont.?A. How if B. What if C. Such as D. Only if16.When _, the museum will be open to the public next year.A. completed B. completing C. being completed D. to be completed17. The man we followed suddenly stopped and looked as if _ whether he was going in the right direction. A. seeing B. having seen C. to have seen D. to see18. Wait until we get a satisfactory one, will you? -I couldnt agree _, It sounds good to me.A. much B. worse C. more D. at all19. Ill be away on a business trip. Would you mind looking after my cat?Not at all. _. A. Ive no time B. Id rather not C. Id like it D. Id be happy to20. Do you mind my taking this seat？ _. A. Yes, sit down B. No, of course not C. Yes, take it please D. No, you cant take it21. I usually go there by train. Why not _by boat for a change? A. to try going B. trying to go C. to try and go D. try going22. Unless_ to speak, you should remain silent at the conference. A. invited B. inviting C. being invited D. having invited23. Though_ money, his parents managed to send him to university. A. lacked B. lacking of C. lacking D. lacked in24. The research is so designed that once _nothing can be done to change it.A. begins B having begun C. beginning D. begun 25. _, he doesnt want to go to school and keep in touch with the bad boys. A. As he is a student B. He is as student C. Student as he is D. As students he is26. How are you getting on with your work? Oh, Im sorry. Things arent going so well as _.A. plans B. planning C. planned D. to plan27. You should have thanked her before you left. I meant _, but when I was leaving I couldnt find her anywhere A. to thank B. to C. / D. thanking 28. When first _ to the market, these products enjoyed great success.A. introducing B. introduced C. introduce D. being introduced29. You may take them all home _. A. if possible B. if can C. if impossible D. if you are possible 30. Water, _ enough, can change into vapor quickly A. when heated B. while heating C. when to be heated D. when is heated 31. Should I look up each word that I dont understand? No, turn to your dictionary only when _.A. you are necessary B. you need C. necessary D. you are needed 答案：1-5ABABC 6-10CCDCC 11-15CCDBB 16-20ADCDB 21-25DACDC 26-31CBBAAC
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