Many ecologists believe that lots of major species in the world are on the ________ of extinction.

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• 1One witness ________ that he’d seen the suspect run out of the bank after it had been robbed.

  A.convicted

  B.retorted

  C.testified

  D.conformed

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• 2A ________ official is one who is irresponsible in his work.

  A.slack

  B.tedious

  C.timid

  D.suspicious

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• 3By turning this knob to the right you can ________ the sound from the radio.

  A.enlarge

  B.amplify

  C.reinforce

  D.intensify

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• 4She expressed her strong determination that nothing could ________ her to give up her career as a teacher.

  A.reduce

  B.deduce

  C.attract

  D.induce

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• 5He had an almost irresistible ________ to talk to the crowd when he entered Hyde Park.

  A.surge

  B.impulse

  C.stimulation

  D.instinct

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• 6A number of students ________ in flats, and others live in the nearby holiday resorts, where there is a reasonable supply of competitively priced accommodation.

  A.reside

  B.revive

  C.gather

  D.inhabit

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• 7The doctors ________ the newly approved drug into the patient when he was critically ill.

  A.projected

  B.injected

  C.ejected

  D.subjected

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• 8My grandfather, a retired worker, often ________ the past with a feeling of longing and respect.

  A.contrives

  B.considers

  C.contacts

  D.contemplates

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• 9This is a long ________—roughly 13 miles down a beautiful valley to the little church below.

  A.terrain

  B.tumble

  C.descent

  D.degeneration

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• 10The microscope and telescope, with their capacity to enlarge, isolate and probe, demonstrate how details can be ________ and separated from the whole.

  A.magnified

  B.radiated

  C.prolonged

  D.extended

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