_______, the experiment will be successful.

试卷相关题目

• 1The next thing he saw was smoke _____form behind the house.

  A.rose

  B.rising

  C.torise

  D.risen

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• 2I never know how colorful my life would be until I ____ my first college teacher last term.

  A.meet

  B.met

  C.have met

  D.had met

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• 3_______ the right to correct his difficult question，the teacher of English was pleased and praised me in front of the class.

  A.Having given

  B.Having been given

  C.To be given

  D.Giving

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• 4Fog and Haze occurred in many areas of our country ,_________ a large area of low visibility condition in the city.

  A.causing

  B.cause

  C.to cause

  D.caused

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• 5_________at the cafeteria before, Tina didn't want to eat there again.

  A.Having eaten

  B.To eat

  C.Eat

  D.Eating

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• 6While watching television, __________.

  A.the doorbell rang

  B.the doorbell rings

  C.they heard the doorbell rings

  D.they heard the doorbell ring

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• 7Each button, when _______, provides a piece of beautiful music.

  A.clicked

  B.having clicked

  C.clicking

  D.being clicked

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• 8The secretary worked late into the night, ______ a long speech for the president. 

  A.to prepare

  B.prepared

  C.preparing

  D.to be prepared

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• 9When the teacher came in, the students pretended _____ the text.

  A.to read

  B.reading

  C.to have read

  D.to be reading

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• 10He made up his mind to devote his life ______ the river ______ polluted.

  A.to prevent; to be

  B.to prevent; from being

  C.to preventing; to be

  D.to preventing; from being

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