Public service advertisements are often run _____ free, and are ______ to educate people about health, safety, or any other issue which affects public welfare.

试卷相关题目

• 1The General Manager held a dinner party at the International Hotel _______ the foreign guests.

  A.in honor of

  B.in place of

  C.in face of

  D.in favor of

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• 2I have a lot to say ______ that problem.

  A.in relation with

  B.related with

  C.in relation to

  D.referring to

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• 3She would rather(宁愿) have a room ______ than sleep with her sister.  

  A.on her own

  B.of her own

  C.of hers

  D.for her

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• 4You have made a few mistakes in your composition but _______ you have done well.

  A.on the whole

  B.first of all

  C.on the other hand

  D.in a word

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• 5Do you believe in the old saying “A friend _________ need is a friend indeed?”

  A.in

  B.at

  C.of

  D.for

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• 6He's aiming ________a prize. That is why he puts his heart ________ his work.

  A.at; of

  B.to; off

  C.for; away

  D.at; into

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• 7It is evident that success lies _____ hard work; ______ other words, hard work leads to success．

  A.on; on

  B.in; in

  C.on; in

  D.in; with

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