The students were ____ over the ____ problem,  listening to the teacher with a ____ expression on their faces.      

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• 1John is very _____ if he promises to do something he'll do it.   

  A.independent

  B.confident

  C.reliable

  D.flexible

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• 2Lizzie was _____ to see her friend off at the airport.       

  A.a little more than sad

  B.more than a little sad

  C.sad more than a little

  D.a little more sad than

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• 3The poor man , _____, ran out of the dark cave.

  A.tiring and frightened

  B.tired and frightened

  C.tired and frightening

  D.tiring and frightening

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• 4Don't treat me like a criminal. Everyone in the world knows that I am  _____!

  A.unique

  B.stubborn

  C.innocent

  D.potential

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• 5— There are only two days to go way from my test. I'm so ______ about it!   — Take it easy. Good luck!

  A.serious

  B.curious

  C.cautious

  D.nervous

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• 6Despite the photos, the scientists are still _________ about the existence of the monster because the area at such high altitude is ________ to support such a creature..

  A.skeptical;unlikely

  B.sure;impossible

  C.skeptical;impossible

  D.optimistic;unlikely

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• 7— I'd like your help tomorrow.— No problem, but can you be more _______ so that I can make advance preparations?

  A.serious

  B.brief

  C.formal

  D.specific

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• 8Studies have shown that our most _____ scientists produce not only some of the best ideas, but also _____ bad ones.

  A.respected; a great many of

  B.respectable; a great deal of

  C.respected; a great deal of

  D.respected; a great many

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• 9His request was so _____ that it was turned down at once.

  A.exact

  B.absurd

  C.regular

  D.urban

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• 10Student Council asks for _____ service to help the poor students.

  A.valuable

  B.volcano

  C.voluntary

  D.voltage

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