_________the difficult problem,the professor continued to do his experiment.     

试卷相关题目

• 1_____ back to China, all the staff who had worked in Libya strongly felt that our country is very powerful.

  A.To fly

  B.Flying

  C.To be flown

  D.Having been flown

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• 2— Would you go to the concert this evening?— Sorry. ________ tomorrow's lessons, I have no time to go out with you.

  A.Not preparing

  B.Not having prepared

  C.Not to prepare

  D.Being not prepared

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• 3The young man, ______ several attempts to beat the world record in high jumping, decided to have another try.     

  A.to make

  B.making

  C.made

  D.having made

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• 4________ back to China, all the staff who had worked in Libya strongly felt that our country is very powerful.   

  A.To fly

  B.Being flying

  C.To be flown

  D.Having been flown

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• 5____ the computer competition quite well, he won the first prize.

  A.Preparing

  B.Having prepared

  C.To prepare

  D.Prepared

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• 6____ enough money, Jim was unable to buy his girl-friend expensive jewellery.

  A.Not to save

  B.Not saving

  C.Not saved

  D.Not having saved

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• 7When and where to go for the on-salary holiday still _____.   

  A.are remained to decide

  B.is remaining to decide

  C.remain to be decided

  D.remains to be decided

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• 8My uncle will make a trip to Beijing, so he will________ work for a week.

  A.be off

  B.be away

  C.be out of

  D.leave for

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• 9Interest, as well as skills, ______ important when one looks for a job.

  A.is

  B.are

  C.has

  D.have

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• 10______ the programme, they have to stay there for another two weeks.

  A.Not completing

  B.Not completed

  C.Not having completed

  D.Having not completed

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