During the chemical experiment, he told his students to ________ what had happened to the materials．

试卷相关题目

• 1Smoking does great harm to our health．_________ is smoking allowed in public places．

  A.At no time

  B.In no time

  C.At all times

  D.All the time

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• 2My computer has a virus．I asked my friend to take a look at it．She can ________ any computer problems．

  A.get out

  B.pick out

  C.take out

  D.sort out

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• 3The map is wrong, and I can't ________ where we are．

  A.make out

  B.decide on

  C.work out

  D.work on

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• 4His determination and devotion to science ________ the great discovery．

  A.lied in

  B.are led to

  C.led to

  D.as a result

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• 5Increasing pollution will of course not ________ the constant development of the world．

  A.make up

  B.make for

  C.make use of

  D.make out

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• 6Now and then they would ________ our house and have a talk with us．

  A.call on

  B.drop in at

  C.drop in on

  D.drop in

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• 7The teacher ________ the students _______him and told them some important things．

  A.gathered; round

  B.got; round

  C.gathered; to

  D.got; to

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• 8Cars pollute the air ________ waste gas．

  A.in the way of

  B.in the form of

  C.at the time of

  D.at the end of

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• 9China's first train from Beijing to Tibet ________ on Saturday carrying business travelers on the world's highest railway．

  A.set about

  B.set out

  C.set down

  D.set up

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• 10The French News Agency ________ a statement from the Trade Minister this morning．

  A.put through

  B.put off

  C.put up

  D.put out

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