To succeed in a scientific experiment _____ .   

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• 1--Do you know the man ___ John Brown? ---I only know ___ he is called.

  A.called, how

  B.called, what

  C.who called, how

  D.whom called, what

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• 2 With a lot of difficult problems ____, the manager felt worried all the time.

  A.settled

  B.to be settled

  C.settling

  D.to settle

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• 3He felt his chair _________ at the time of the earthquake.

  A.moved

  B.to move

  C.is moving

  D.moving

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• 4I have no one ______ me, for I am a new comer here.

  A.help

  B.helping

  C.to help

  D.to have helped

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• 5There was less food for birds and also for the Prairie dog, an______holes in the ground.

  A.livs

  B.is living

  C.living

  D.lived

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• 6_____ with the size of the whole earth，the biggest ocean does not seem big at all.

  A.Compare

  B.Having compared

  C.Comparing

  D.Compared

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• 7____twice a year, whether it is a car or a bus or a truck, is the rule that every driver must obey in this city.

  A.Examining

  B.Examined

  C.Being examined

  D.Having been examined

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• 8.Please make my excuse at tomorrow's meeting. I've got too much work _____.

  A.to do to come

  B.doing coming

  C.to do coming

  D.doing to come

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• 9A number of new machines were introduced from abroad，______ an increase in production.

  A.resulted in

  B.to result in

  C.result in

  D.resulting in

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• 10— Did Peter fix the computer himself? — He __________, because he doesn't know much about computers.

  A.has it fixed

  B.had fixed it

  C.had it fixed

  D.fixed it

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