John found it a challenge to meet the needs of the boss. ______ , he had no way to satisfy him.

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• 1Stressful environments lead to unhealthy behavior such as poor eating habits, which ______ increases therisk of  heart disease.     

  A.in turn

  B.in return

  C.by chance

  D.by turns

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• 2To put his wife _____ and to guarantee a promise of top secrecy, a husband may claim that alife-threatening assignment is just a business trip.         

  A.in danger

  B.on time

  C.at ease

  D.with ease

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• 3The murderer was ______ for almost a month before he was arrested in Hainan.

  A.on the run

  B.on the scene

  C.on the air

  D.on the decline

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• 4Sometimes proper  answers are not far to seek  food  _____ safety problem.    

  A.in

  B.to

  C.on

  D.after

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• 5You should have had more patience ____ that customer. I'm sure thatselling him the watch was a possibility.

  A.of

  B.with

  C.for

  D.at

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• 6It's the protection for the trees ______ really matters, ______ how many trees are planted each year.     

  A.which; or rather

  B.as; more than

  C.what; other than

  D.that; rather than

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• 7It is never easy to adapt ____ big changes. Those who   can do it faster are more likely to succeed.   

  A.for

  B.with

  C.in

  D.to

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• 8American women usually identify their  best friend as someone _____ they can talk frequently.    

  A.who

  B.about which

  C.as

  D.with whom

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• 9To our pleasure, his parents came to accept the fact ____.          

  A.at times

  B.in time

  C.on time

  D.at a time

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• 10Like some of my classmates,  I can't live up to my teachers' expectations,______ , I let them down.     

  A.in other words

  B.after all

  C.what's more

  D.more or less

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