_____several times，but unfortunately，the boy still couldn't smooth away the problem on his own.

试卷相关题目

• 1In the office I never seem to have time until after 5:30 p. m., _____ many people have got home.

  A.whose time

  B.by that time

  C.on which

  D.by which time

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• 2A container weighs more after air is put in,_____ proves that air has weight. 

  A.as

  B.it

  C.that

  D.which 

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• 3There is a mountain _____the top is always covered with snow. 

  A.whose

  B.of which

  C.its

  D.that 

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• 4. We would do more such exercises in the future, I think, ________ we did yesterday.

  A.as

  B.which

  C.that

  D.than

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• 5A new subway will have been completed in the city by the end of the year 2007 , ________ will be very convenient for us to get around shopping and sightseeing.

  A.when it

  B.where it

  C.when that

  D.which that

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• 6________ is well-known to all, the great changes have taken place in Chin

  A.A.It

  B.that

  C.As

  D.Which

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• 7 So many uses have been discovered for this wood ________ the supply of white pine is becoming smaller and smaller.

  A.then

  B.what

  C.that

  D.which

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• 8Perseverance is a kind of quality and that's ________ it takes to do anything well.

  A.what

  B.that

  C.which

  D.why

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• 9These shoes look very good. I wonder __________.

  A.how much cost they are

  B.how much do they cost

  C.how much they cost

  D.how much are they cost

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• 10We worried about ______ he was in good health.

  A.whether

  B.if

  C.that

  D.what

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