With the word 'PM2.5'______ heard and seen in our life, people become more and more concerned about air pollution.

试卷相关题目

• 1Of all the books on the shelf, ______ is of any use for improving our practical skills of survival in the competitive world.

  A.nothing

  B.no one

  C.neither

  D.none

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• 2Sara enjoys amusing her friends by________stories.

  A.keeping up

  B.making up

  C.putting up

  D.taking up

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• 3 According to the law，all foreigners have to________with the local police within two weeks of arrival.

  A.associate

  B.dispute

  C.negotiate

  D.register

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• 4Poetry written from the ______ of the urban youth tends to reveal their anxiety over a lack of sense of belonging.

  A.perspective　　　　　　

  B.priority

  C.participation

  D.privilege

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• 5Whoever is never ______ with the progress he has made will be a success.

  A.content

  B.proud

  C.abundant

  D.familiar

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• 6While income worry is _______ rather common problem of the aged, loneliness is another problem that _______ aged parents may face. 

  A.a; the

  B.the; /

  C.a; /

  D.the; the

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• 7Harry telephoned to the airport to ______ whether Flight 24 for San Francisco is departing on time.

  A.prove

  B.ensure

  C.confirm

  D.identify

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• 8 It's much easier to make friends ________ you have similar interests.

  A.unless

  B.when

  C.even though

  D.so that

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• 9 While intelligent people can often ________ the complex，a fool is more likely to complicate the simple.

  A.sacrifice

  B.substitute

  C.simplify

  D.survive

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• 10Young kids! You'd better apologize to us，or we ________the right to accuse you of cheating.

  A.reserve

  B.preserve

  C.observe

  D.deserve

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