一 单选题1. The research is so designed that once _ nothing can be done to change it. begins having begun beginning Begun本题分值： 4.0 用户未作答 标准答案： Begun -2. _his mother, the boy stopped crying. At sight In sight At the sight of In the sight of本题分值： 4.0 用户未作答 标准答案： At the sight of -3. Its good to see you again, Agnes. This has been our first chance to visit since_from Iran. you return you returned you have returned returning本题分值： 4.0 用户未作答 标准答案： you returned -4. IPCC projections indicate that if emissions continue to rise at their current _ and are allowed to double from their pre-industrial level, speed rate pace rhythm本题分值： 4.0 用户未作答 标准答案： pace -5. It really does harm to our society. It has already formed a sort of moral pollution. The _teachers and parents need more powerful support. puzzled disappointed anxious worried本题分值： 4.0 用户未作答 标准答案： worried -6. Is it possible for you to work late tonight? _. I like it Ill do that Id love to I think so本题分值： 4.0 用户未作答 标准答案： I think so -7. I can _ a bright future for such a talented young man as you. foresee see look image本题分值： 4.0 用户未作答 标准答案： foresee -8. During the war, many soldiers were killed not by _, but by disease. bulledts devil bible depth本题分值： 4.0 用户未作答 标准答案： bulledts -9. Have you got _E-mail address? -Yes, mine is Li Ping yahoo.com.cn. the an a /本题分值： 4.0 用户未作答 标准答案： an -10. Could you ask him _here? comes come to come coming 本题分值： 4.0 用户未作答 标准答案： to come -11. This box is too heavy for me to carry it upstairs. _. You may ask for help Ill give you a hand Please do me a favor Id come to help本题分值： 4.0 用户未作答 标准答案： Ill give you a hand -12. You _ worry about his health. dont need neednt doesnt need neednt to 本题分值： 4.0 用户未作答 标准答案： neednt -13. On the second floor, _a young man, who was an artist. there had there lived there have there has本题分值： 4.0 用户未作答 标准答案： there lived -14. _ in a white uniform, he looks more like a cook than a doctor. Dressed To dress Dressing Having dressed本题分值： 4.0 用户未作答 标准答案： Dressed -15. The flowers _sweet in the botanic garden attract the visitors to the beauty of nature. to smell smelling smelt to be smelt本题分值： 4.0 用户未作答 标准答案： smelling -16. _ into use in April 2000, the hotline was meant for residents reporting water and heating supply breakdowns. Put Putting Having put Being put本题分值： 4.0 用户未作答 标准答案： Put -17. I thought Jim would say something about his school report, but he _ it. doesnt mention hadnt mentioned didnt mention hasnt mentioned本题分值： 4.0 用户未作答 标准答案： didnt mention -18. He gave us a good _ of his experience. demonstration frequency descripton instruction 本题分值： 4.0 用户未作答 标准答案： descripton -19. Many species of animals which once lived on the earth are no longer_. in practice in existence in common in turn本题分值： 4.0 用户未作答 标准答案： in existence -