The number of vehicles has been steadily increasing. _______, more than 100 cities  in the United States still have levels of carbon monoxide that exceed legally    established limits.

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• 1Fluency can be _______ defined as "being able to communicate ideas without having to stop and think too much about what one is saying."

  A.simple

  B.simply

  C.similar

  D.simplify

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• 2Managers need to monitor inflation trends so they can make good _______.

  A.decisive

  B.decisions

  C.decide

  D.decided

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• 3I raced to_______ Jill.

  A.keep on

  B.keep up with

  C.come up with

  D.come up to

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• 4The companies that are finding ways to hang on to their older workers _______ from an intangible commodity: wisdom.

  A.obtain

  B.earn

  C.develop

  D.benefit

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• 5_______of the great state of Illinois, let me express my deepest gratitude for the  privilege of addressing this convention.

  A.On account

  B.In honor

  C.In place

  D.On behalf

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• 6A(An) _______ is better than the text and may make the point clear.

  A.interpretation

  B.representation

  C.illustration

  D.draw

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• 7Some of the world's best mountain _______ is available within the 500-kilometer    long chain of the Southern Alps.

  A.scene

  B.scenery

  C.scarce

  D.scare

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• 8After a through research, the police __ most of the missing jewels.

  A.retreated

  B.refreshed

  C.recovered

  D.reminded

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• 9A gold-rated building is estimated to have reduced its environmental impact by 50% compared with a(an) __ conventional building.

  A.equivalent

  B.alike

  C.uniform

  D.likely

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• 10When pessimists __ in their first attempt, they usually say, "I can't do this."

  A.feel

  B.fail

  C.defeat

  D.lost

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