34. When he knocked at the door, my mother was busy ____ supper.A．preparing forB
题型：不详难度：来源：
34. When he knocked at the door, my mother was busy ____ supper.| A．preparing for | B．in preparing | | C．to prepare for | D．to prepare |
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答案
| B |
解析
| “be busy (in)doing something” 忙于干谋士，要求接动词的-ing形式。准备的直接宾语是“supper”,故其前面不用介词for。 |
举一反三
22．If you keep practising your son in football, he________ to make a famous player．| A．wants | B．hopes | C．promises | D．Wishes |
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24. The boy the teachers considered _____ was caught ______ in the exam, which surprised us very much.| A．to be the best, cheating | B．as the best student, to cheat | | C．being the best, cheating | D．as a good student, to cheat |
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28. I"m afraid we"ll have to work extra hours for there are still some problems ________.| A．remaining to settle | B．remaining to be settled | | C．remained to be settled | D．to remain to settle |
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32. —Mom, I can’t see any point in working hard at all the subjects at school.
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