In no circumstances can more work be got out of a machine than ________.

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• 1Animals can become unusually ________ when they are upset by a sudden environmental change.

  A.puzzled

  B.predominant

  C.vigorous

  D.aggressive

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• 2I seem to have reached a rather gloomy conclusion, but I think that something cheerful may still be derived ________ it.

  A.of

  B.off

  C.from

  D.with

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• 3The weatherman broadcasts the ________ in temperature twice a day.

  A.diversion

  B.variation

  C.variety

  D.modification

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• 4It was only after some progress ________ in the use and development of electric current that men began to realize the importance and possibilities of magnetism.

  A.was made

  B.would have been made

  C.has been made

  D.had been made

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• 5If each manager makes his usual speech, the meeting will be ________ for forty-five minutes.

  A.expanded

  B.prolonged

  C.delayed

  D.exceeded

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• 6The winning team loudly ________ its victory.

  A.magnified

  B.proclaimed

  C.signified

  D.exclaimed

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• 7Last year, these ships transported a total of 83.34 million tons of cargo, a 4.4 per cent increase ________ the previous year.

  A.over

  B.than

  C.up

  D.beyond

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• 8With an eighty-hour week and little enjoyment, life must have been very ________ for the nineteenth-century factory workers.

  A.hostile

  B.anxious

  C.tedious

  D.obscure

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• 9The Second World War, ________ the earlier one of 1914, promoted public concern about the physical and intellectual well-being of the country’s human resources.

  A.so as

  B.as were

  C.as did

  D.same as

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• 10Louis was asked to ________ the man who stole her purse.

  A.confirm

  B.recognize

  C.claim

  D.identify

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