| 1. 难度:困难 | |
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 It is difficult to imagine his _____________ the decision without any consideration. A. accept B. accepting C. to accept D. accepted 
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| 2. 难度:困难 | |
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 --Our maths teacher wanted you to do your homework again. --I can just imagine him ______that. A. say B. saying C. to say D. said 
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| 3. 难度:困难 | |
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 With some books he needed ____, he went into the bookstore quickly. A. to buy B. bought C. buying D. buy 
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| 4. 难度:困难 | |
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 Having been praised by the teacher, the little girl ran back home,____. A. happily and satisfied B. eager and excitedly C. happy and satisfied D. anxiously and excitedly 
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| 5. 难度:困难 | |
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 We did not expect our offer _____ so quickly. A. rejected B. to reject C. to be rejected D. rejecting 
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| 6. 难度:困难 | |
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 It snowed heavily last night, thus ________ the traffic problems today. A. causing B. caused C. having caused D. having been caused 
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| 7. 难度:困难 | |
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 I like getting up very early in summer. The morning air is so good _________. A. to be breathed B. to breathe C. breathing D. being breathed 
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| 8. 难度:困难 | |
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 Upon __________ home, he was arrested by the police. A. arriving B. arrived C. arrive D. to arrive 
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| 9. 难度:困难 | |
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 The little boy isn’t getting on well in maths and worse still, he is even unwilling to go to school. With her son _____, she feels very ______. A. disappointing;worrying B. disappointing;worried C. disappointed;worried D. disappointed;worrying 
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| 10. 难度:困难 | |
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 ____________ and out of breath, we reached the top of the mountain and stopped __________ the beautiful scenery. A. Tiring, to admire B. Being tired, admiring C. Tired, to admire D. Tired, admiring 
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| 11. 难度:困难 | |
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 The song You And Me _________ on the radio interests everyone. A. playing B. played C. is played D. has been played 
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| 12. 难度:困难 | |
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 __________ from above, the 2008 Olympic stadium in Beijing looks just like a bird’s nest made of the branches. A. To see B. Seeing C. Seen D. Having seen 
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| 13. 难度:困难 | |
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 Sometimes she was dying____________ her husband about it. A. tell B. telling C. to tell D. of telling 
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| 14. 难度:困难 | |
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 Unless _____ to speak, you should remain silent at the conference. A. having invited B. inviting C. being invited D. invited 
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| 15. 难度:困难 | |
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 At the sight of the policeman, ___from behind the door. A. did the boy rush out B. did he sit down C. out rushed the boy D. rushing out was the boy 
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| 16. 难度:困难 | |
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 It will take us about an hour to get to the airport, _______ possible traffic delay. A. allowed for B. allowing C. allowed D. allowing for 
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| 17. 难度:困难 | |
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 When he came back three hours later , they were still sitting on the sofa , _______________ in conversation. A. absorbing B. absorbed C. to absorb D. to be absorbed 
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| 18. 难度:困难 | |
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 We had an anxious couple of weeks _____ for the results of the experiment. A. wait B. to be waiting C. waited D. waiting 
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| 19. 难度:困难 | |
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 Believe it or not, in the United States, 40% of the toys _____ are for adults. A. sold B. selling C. to sell D. to be selling 
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| 20. 难度:困难 | |
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 --The last one pays the meal. --Agreed! A. to arrive B. arrives C. arrived D. arriving 
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