Everything around us is ____ solid ..liquid ____ gas.

试卷相关题目

• 1_______Tom is very good at science, his brother is absolutely hopeless.

  A.When

  B.While

  C.As

  D.If

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• 2Many people firmly believed ______ a healthy lifestyle can improve the quality of life.

  A.that

  B.if

  C.how

  D.why

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• 3---I wonder, Mr Adams, ______ you'd mind us asking a few questions. ---______. I am all ears.

  A.if; Yes, go ahead

  B.whether; No, go ahead

  C.that; Sure, go ahead

  D.if; Sure, go ahead

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• 4______ you understand this rule, you will have no further difficulty.

  A.Once

  B.At once

  C.Only

  D.Only then

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• 5We arrived at the station ____ the train had left.

  A.after

  B.before

  C.since

  D.when

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• 6We should pay attention ____ to industry ____ to agriculture.

  A.either, or

  B.neither, nor

  C.not, but

  D.both, and

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• 7Don't try to get off the bus ____ it has stopped.

  A.while

  B.as

  C.since

  D.before

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