_____ a written permission, he had to write another letter to the president of the university.

试卷相关题目

• 1_____ many times, he finally understood it.

  A.Told

  B.Telling

  C.Having told

  D.Having been told

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• 2You were fortunate enough to escape ________ for drunken driving, but don't drink again.

  A.fining

  B.to fine

  C.being fined

  D.to be fined

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• 3— Any danger for the patient _______ on by Dr. Smith?— Hard to say. Doctors are trying their best.

  A.to operate

  B.being operated

  C.to be operated

  D.operating

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• 4The country has already sent up  three unmanned spacecrafts, the most recent _______ at the end of last March.     

  A.has been launched

  B.having been launched

  C.being launched

  D.to be launched

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• 5At the beginning of class, the noise of desks _______ could be heard outside the classroom.   

  A.opened and closed

  B.to be opened and closed

  C.being opened and closed

  D.to open and close

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• 6________in the queue for half an hour, the old man suddenly realized he had left the cheque in the car.   

  A.Waiting

  B.To wait

  C.Having waited

  D.To have waited

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• 7_____ many times, John still couldn't work out the problem.

  A.Trying

  B.Tried

  C.To try

  D.Having tried

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• 8____ my homework, I have no time for computer games.   

  A.Not finishing

  B.To be finishing

  C.Having not finished

  D.Not having finished

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• 9 _______ to reach them on the  phone, we sent an email instead.     

  A.Fail

  B.Failed

  C.To fail

  D.Having failed

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• 10New policies, _______ to insure that compulsory education is truly free, _______by the local government across China since the start of school on September 1.

  A.intending; have been made known

  B.intended; have been made known

  C.intending; are made known

  D.intended; had made known

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