Evidence obtained from observation and experiment is often used to _____ a scientific theory.

试卷相关题目

• 1I'd appreciate ____ if you would like to teach me how to use the computer.

  A.that

  B.it

  C.this

  D.you

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• 2--- Did you find the pen yesterday? --- No, I didn't find ________, but I have bought ________.

  A.it; it

  B.one; it

  C.it; one

  D.one; one

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• 3—Sorry, I made a mistake again. — ______. Practice more and you'll succeed.

  A.Never mind

  B.Certainly not

  C.Not at all

  D.Don't mention it

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• 4Though we found _____difficult to avoid economic and financial crisis, we must take measures to reduce its negative impact.

  A.it

  B.one

  C.that

  D.how

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• 5Some people would rather ride bikes as bike ridding has _____  of the trouble of taking buses.

  A.nothing

  B.none

  C.some

  D.neither

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• 6I don't think _____ possible to master a foreign language without much memory work.

  A.this

  B.that

  C.its

  D.it

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• 7_____--- Playing table tennis.

  A.killing time

  B.to kill time

  C.spending the time

  D.to spend the time

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• 8This book can be of help to ________ wants to do the job.

  A.who

  B.whoever

  C.no matter who

  D.whomever

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• 9Although no one wanted to talk about it, a terrible accident _____ happen the other day.

  A.does

  B.did

  C.has to

  D.had to

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• 10Charles was alone at home, with _____ looking after him.

  A.someone

  B.anyone

  C.not one

  D.no one

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