This problem may lead to more serious ones if ______ unsolved.

试卷相关题目

• 1Modern science has given clear evidence ______ smoking can lead to many diseases.

  A.what

  B.which

  C.that

  D.where

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• 2Everything was placed exactly ________ he wanted it for the graduation ceremony.

  A.while

  B.when

  C.where

  D.though

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• 3In the global economy, a new drug for cancer, ______ it is discovered, will create many economic possibilities around the world.

  A.whatever

  B.whoever

  C.wherever

  D.whichever

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• 4In my opinion, life in the twenty-first century is much easier than ___________.

  A.that used to be

  B.it is used to

  C.it was used to

  D.it used to be

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• 5She sat in the chair, ______ the newspaper.

  A.read

  B.being read

  C.to read

  D.reading

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• 6A number of high buildings have arisen ______ there was nothing a year ago.

  A.when

  B.where

  C.before

  D.until

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• 7He was told that it would be at least three more months _______he could recover and return to work.

  A.when

  B.before

  C.since

  D.that

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• 8In the global economy, a new drug for cancer,________ it is discovered, will create many economic possibilities around the world.

  A.whatever

  B.whoever

  C.wherever

  D.whichever

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• 9The problem will appear ________ a different welfare system will be created.  

  A.unless

  B.whether

  C.until

  D.if

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• 10He made a promise ________ anyone set him free he would make him very rich.

  A.that

  B.if

  C.what

  D.that if

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