By the time he realizes he _____ a mistake, it' ll be too late for him to change his mind.    

试卷相关题目

• 1Some necessary equipment as well as food and clothes________sent to the disasterhit area since the powerful earthquake occurred.

  A.has been

  B.have been

  C.is being

  D.are being

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• 2The house is dirty because it ________ since they moved out.

  A.doesn't clean

  B.isn't cleaned

  C.hasn't cleaned

  D.hasn't been cleaned

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• 3—Why，Jack，you look so tired! —Well，I ________ the house and I must finish the work tomorrow.

  A.was painting

  B.will be painting

  C.have painted

  D.have been painting

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• 4When to go for the on-salary holiday          yet?

  A.are not decided

  B.have not been decided

  C.is not being decided

  D.has not been decided

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• 5— Are you still busy? — Yes, I _____ my work, and it won't take long.

  A.just finish

  B.am just finishing

  C.have just finished

  D.am just going to finish

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• 6Those who ____ in ____compositions, please hand them in this afternoon.

  A.hasn’t handed; his

  B.haven’t handed; their

  C.has handed; their

  D.have handed; his

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• 7Because of the bad weather, my mother ____ and lay in bed. She ______ for a week.

  A.has been ill; was ill

  B.fell ill; has fallen ill

  C.fell ill; has been ill

  D.fell ill; is ill

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• 8By the time he realizes he ______ into a trap, it'll be too late for him to do anything about it.

  A.walks

  B.walked

  C.has walked

  D.had walked

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• 9The country life he was accustomed to ________a lot since 1998.

  A.change

  B.has changed

  C.changing

  D.had changed

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• 10He complained that this was the third time he             of the changes of the meeting date.

  A.would be informed

  B.was informed

  C.has been informed

  D.has been informed

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