However, at times this balance in nature is disturbed, ____ a number of possibly unforeseen effects.

试卷相关题目

• 1Several witnesses gave accounts of what they had seen. It took many hours to _______ the court of the driver's guilt.

  A.prove

  B.convince

  C.persuade

  D.demonstrate

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• 2Here are some toys. You can _______ one for your little son as a birthday gift.

  A.rule out

  B.pick out

  C.take out

  D.carry out

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• 3This book is said to be a special one, which ________many events not found on other history books.

  A.writes

  B.covers

  C.prints

  D.reads

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• 4_____, I don't like her sister.

  A.Telling the truth

  B.Been told the truth

  C.To tell the truth

  D.To tell the true

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• 5Some 1,000 new words or usages join the English language each year. Some go into the dictionary. Others _______ from use.

  A.remain

  B.leave

  C.fail

  D.fade

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• 6The conference has been held to discuss the effects of tourism _______ the wildlife in the are

  A.A.in

  B.on.

  C.at

  D.with

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• 7Christmas seems to ______ more quickly every year.

  A.come round

  B.come in

  C.come over

  D.come out

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• 8Many teens don't get enough sleep because they have too much homework, which _______ them up at night.

  A.makes

  B.breaks 

  C.turns

  D.keeps

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• 9Everyone here likes Mike because he is good at telling and _______ jokes.

  A.turning up

  B.putting up

  C.making up

  D.showing up

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• 10The happy children were making _______ the coast, where they would see the sea for the first time in their lives.

  A.their way in

  B.their ways to

  C.their way in

  D.their way to

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