Many difficulties have  ______ as a result of the change over to a new type of fuel.

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• 1一You have made great progress in your studies of English，haven't you? 一Yes，but much _______ ．

  A.remains to do

  B.is remained to do

  C.remains to be done

  D.is remained to be done

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• 2We should consider the students' request that the school library_______ more books on popular science.

  A.provide

  B.was provided

  C.provided

  D.should be provided

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• 3After listening to the joke, one minute she burst out _________ and the next she burst into_________.

  A.laugh; tears

  B.laughing; crying

  C.laughing; tears

  D.laughter; tears

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• 4I spent all the money __________ for rainy days, so I started my part-time job. But it would be some time before I was ___________.

  A.put aside, in the black

  B.put away, in the red

  C.push aside, feeling blue

  D.taken away, green with envy

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• 5---- Tom wants to be another Obama after he graduates from school. ---- That sounds great, but how can he ____ a person like him if he goes on like this?

  A.change

  B.turn

  C.get

  D.make

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• 6The patient's dangerous condition __________ the doctors and nurses many a sleepless night.

  A.cost

  B.spent

  C.paid

  D.made

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• 7Both of my parents insist ______ a computer for me, but I don't think it is necessary.

  A.to buy

  B.on buying

  C.buying

  D.in buying

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• 8In the park, the number of visitors is tightly _______ to avoid damaging the environment or putting stress on the animals.

  A.limited

  B.encouraged

  C.expected

  D.intended

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• 9The little boy was so careless with his spelling that he often ______ letters from words.

  A.left off

  B.left behind

  C.left out

  D.let alone

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• 10After knocking down the old man, the inhuman driver left the accident scene in a hurry, ______ the law to punish him.

  A.defeating

  B.challenging

  C.informing

  D.absorbing

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