After many years of careful experiments they are able to ________ the growth of corn．

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• 1As is reported in the newspapers, more and more middle school students are studying abroad _____.

  A.at their expense

  B.in their expenses

  C.for their expenses

  D.with their expense

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• 2The camel can __________ the water miles away in the desert.

  A.feel

  B.smell

  C.sense

  D.find

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• 3Thomas Edison was considered as a great inventor and ________ scientist.

  A.brilliant

  B.a brilliant

  C.brilliance

  D.brilliancy

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• 4After the operation, he began to ________ day by day.

  A.wake up

  B.pick up

  C.prove himself

  D.take up

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• 5He sat down and ________ a cup of te

  A.A.broke out

  B.asked for

  C.got up

  D.took in

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• 6Pollution in big cities is still almost ________ it was years ago.

  A.as big a danger to people as

  B.as big as a danger to people

  C.a danger to people as big as

  D.as a big danger to people as

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• 7What was the nicest part of your holiday ________?

  A.according to your opinion

  B.to your idea

  C.in your opinion

  D.by your idea

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• 8They decided to ________ Paris an open city, and a day later, they officially _________ the decision.

  A.declare; announced

  B.announce; declared

  C.declare; declared

  D.announce; announced

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• 9Can you ________ Mary becoming famous as an artist?

  A.think

  B.make

  C.believe

  D.imagine

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• 10You are making a(n) _____, which might not be true.

  A.substance

  B.assumption

  C.notice

  D.theory

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