Achieving a high degree of proficiency in English as a foreign language is not a mysterious ________ without scientific basic.

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• 1As for the winter, it is inconvenient to be cold, with most of ________ furnace fuel is allowed saved for the dawn.

  A.what

  B.that

  C.which

  D.such

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• 2Most electronic devices of this kind, ________ manufactured for such purposes, are tightly packed.

  A.that are

  B.as are

  C.which is

  D.it is

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• 3Though ________ in San Francisco, Dave Mitchell had always preferred to record the plain facts of small-town life.

  A.raised

  B.grown

  C.developed

  D.cultivated

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• 4There is no reason they should limit how much vitamin you take, ________ they can limit how much water you drink.

  A.much more than

  B.no more than

  C.no less than

  D.any more than

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• 5I must go now. ________, if you want that book I’ll bring it next time.

  A.Incidentally

  B.Accidentally

  C.Occasionally

  D.Subsequently

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• 6We cannot always ________ the wind, so new windmills should be so designed that they can also be driven by water.

  A.hang on

  B.count on

  C.hold on

  D.come on

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• 7The storm sweeping over this area now is sure to cause ________ of vegetables in the coming days.

  A.rarity

  B.scarcity

  C.invalidity

  D.variety

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• 8The purpose of Frederick II’s experiment was ________.

  A.to prove that children are born with the ability to speak

  B.to discover what language a child would speak without hearing any human speech

  C.to find out what role careful nursing would play in teaching a child to speak

  D.to prove that a child could be damaged without learning a language

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• 9The reason some children are backward in speaking is most probably that ________.

  A.they are incapable of learning language rapidly

  B.they are exposed to too much language at once

  C.their mothers respond inadequately to their attempts to speak

  D.their mothers are not intelligent enough to help them

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• 10What is exceptionally remarkable about a child is that ________.

  A.he is born with the capacity to speak

  B.he has a brain more complex than an animal’s

  C.he can produce his own sentences

  D.he owes his speech ability to good nursing

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