Once harm ______ to the environment, it takes years to have the system recovered.

试卷相关题目

• 1All but one _____ take part in the conference ＿＿ tomorrow.

  A.is going to ,that is to take place

  B.are going to ,that is about to take place

  C.are going to ,that is to be taken place

  D.are going to,which is to be held

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• 2—Hello, I'd like to see Doctor Smith at 3 o'clock tomorrow afternoon. —Sorry, but he ________ a patient at that time.

  A.will operate on

  B.will be operating on

  C.will have operated on

  D.will have been operated on

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• 3— Did he notice you enter the room? — I don't think so. He _____ to the radio with his eyes shut.

  A.listened

  B.was listening

  C.has listened

  D.had listened

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• 4— What's the matter? — The shoes don't fit properly. They _____ my feet.

  A.are hurting

  B.will hurt

  C.have hurt

  D.are hurt

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• 5— Is Tom still smoking? — No. By next Saturday he ____ for a whole month without smoking a single cigarette.

  A.will go

  B.will have gone

  C.will have been

  D.has been going

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• 6Man-made-satellites______ into space by many countries.

  A.was sent up

  B.is sent up

  C.have been sent up

  D.has been sent up

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• 7Mary said it was at least five years since he ______ a good drink.

  A.enjoyed

  B.was enjoying

  C.had enjoyed

  D.would enjoy

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• 8All the students_________ to plant trees and there's nobody in the classroom.

  A.go

  B.will go

  C.have gone

  D.wound go

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• 9Look! One of the girls ______the door.

  A.cleans

  B.is cleaning

  C.clean

  D.are cleaning

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• 10--- Can you guess if they _______ to play basketball with us? --- I think they'll come if they _________ free.

  A.will come, will be

  B.will come, are

  C.come, are

  D.come, will be

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