The scientist's many years' careful observation ____ a surprising discovery.

试卷相关题目

• 1At the beginning of the new term, the teacher asked several students to help _______ the new books to the students in the class.

  A.publish

  B.distribute

  C.represent

  D.treasure

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• 2I'm going to see what Dad is________. Two hours is a long time to take over a coffee.

  A.up

  B.up to

  C.up against

  D.up with

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• 3During the floods the cars, trains and buildings could not survive, ____the people who stood in the way.

  A.or rather

  B.let alone

  C.more or less

  D.besides

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• 4We ________ the problem for a long time, but we didn't reach any agreement.

  A.argued

  B.explained

  C.shared

  D.communicated

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• 5Some insects________the colour of their surroundings to protect themselves.   

  A.take in

  B.take off

  C.take on

  D.take out

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• 6— You look upset. What's the matter？ — I had my proposal _______ again.

  A.turned over

  B.turned on

  C.turned off

  D.turned down

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• 7He just stared at me and there was an expression in his eyes that I couldn't ________ ．

  A.tell

  B.watch

  C.read

  D.feel

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• 8I don't think Rosemary will be upset about it, but I'll go to see her in case she _______.

  A.is

  B.will be

  C.does

  D.need

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• 9Don't believe in him; he was _____ with the ability to tell lies.

  A.fixed

  B.equipped

  C.supplied

  D.born

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• 10She opened her eyes with a start and was about to cry out ________ she heard her father urgently telling her to keep quiet.   

  A.while

  B.before

  C.when

  D.as

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