Now scientists are _________ to solve the problem about river pollution.

试卷相关题目

• 1________ in the climate and soil depends in a way on the experiment ________ carried out by the experts.

  A.That grows best; has been

  B.What grows best; being

  C.How does it grow best; is to be

  D.What does it grow best; was

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• 2The youth are ______ the construction of Shanghai.

  A.play an important part in

  B.playing important part in

  C.playing an important part in

  D.played an important part in

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• 3I was first ________ to the novels of Thomas Hardy by an assistant at the local library, ________ persuaded me to read The Wood landers.

  A.introduced; which

  B.brought in; which

  C.introduced; who

  D.brought in; who

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• 4As it is easily shaped and melted, plastics ________ the place of many other materials.

  A.has been taken

  B.have been taken

  C.have taken

  D.has taken

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• 5My sister bought a red sweater _________my white skirt.

  A.going with

  B.to go with

  C.playing with

  D.to play with

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• 6They are ______ them.

  A.waiting you to help

  B.waiting your helping

  C.waiting for you helping

  D.waiting for you to help

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• 7He speaks English so fluently. It looks as if he ＿＿＿from London.

  A.is

  B.was

  C.were

  D.has been

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