__________ sleep every night is important for teenagers. _________, loss of sleep can make you feel tired, and even cause you to put on weight.

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• 1They work day and night; however, _______ of the money they make goes to their so-called eldest brother.

  A.four-fifth

  B.four-fifths

  C.four-five

  D.four-fifths

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• 2In ____ , when he was in ____ , he went abroad to study in Americ

  A.A.the 1980s; his twenties

  B.1980s; the twenties

  C.the 1980s; the twenties

  D.1980s; his twenties

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• 3The flowers don’t need too much water; you can just water them _____.

  A.each other day

  B.every other day

  C.each of two days

  D.every of two days

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• 4Computers can do a lot of things nowadays, but _____ more still need to be done by man.    

  A.a large amount of

  B.a great deal

  C.a good many of

  D.a great many

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• 5---Can I help you, madam? ---Id like to buy ____eggs.

  A.scores of

  B.two scores of

  C.two dozens of

  D.three scores of

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• 6All the viewers were deeply touched by Jay Zhous performance ________ they attended his concert.

  A.the first time

  B.for the first time

  C.at the first time

  D.at first

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• 7_____I think of the happy old days, I cant help smiling.

  A.Every time that

  B.Every time as

  C.Every time when

  D.Every time

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• 8In the USA, the students who study business is more than _______ those who study agriculture.

  A.as many as ten times

  B.as ten times than

  C.ten times as many as

  D.than ten times

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• 9About _______ gene-targeting drugs are already in testing pipeline. It wont be long ______ they are put into effect.

  A.two dozen; before

  B.two dozens; that

  C.two dozens of; before

  D.dozens; that

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• 10Though winters in Britain are cold and there is usually snow, there are ________ places for skiing.

  A.some

  B.many

  C.few

  D.a few

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