A little learning is not dangerous so long as you know _____.

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• 1Two thirds of the earth ________ vast oceans, that is, vast oceans two thirds of the earth.

  A.are made up ;make up of

  B.are made up of ;make up

  C.is made up of ;makes up of

  D.is made up of ;make up

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• 2You have no idea ______ then．

  A.what a hard time we had

  B.we had what a hard time

  C.what we had hard time

  D.what hard time we had

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• 3Actually wastes are valuable resources, but we have not yet learned how to reuse them ________ fully ________.

  A.as; as possible

  B.so; as possible

  C.as; as we could

  D.so; as we can

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• 4They talked in a very low voice ________make themselves ________ clearly.

  A.in order to; hear

  B.so as not to; hear

  C.in order not to; heard

  D.so that to; heard

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• 5Planes joined with ships ________ the ________ pilot .

  A.in search of ;missing

  B.to search ;lost

  C.searching for ;gone

  D.in search for ;losing

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• 6Carbohydrates are the most abundant and _____ food sources of energy.

  A.least cost

  B.least costly

  C.less cost

  D.fewer costs

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• 7________, the Asian Games are held every four years.

  A.It is known to all

  B.It is known

  C.As known to all

  D.As is known to all

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• 8Yesterday they travelled ________ the foot of the mountain.

  A.as far as to

  B.so far as to

  C.as far as

  D.so far as

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• 9You have been late for two hours，otherwise，We________ the whole design．

  A.have fulfilled

  B.fulfilled

  C.should have fulfilled

  D.will have fulfilled

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• 10______is a rich man is known to all in the city.

  A.Because he

  B.That he

  C.He

  D.Who he

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