______ is certain is ______ prevention is more important than treatment .

试卷相关题目

• 1What have you got _______ will help a cold?

  A.what

  B.that

  C.it

  D.who

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• 2she is satisfied with what you have given him and ______ you have told him.

  A.that

  B.which

  C.all what

  D.all that

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• 3The cost of sales makes up a large part of the prices that _____.  

  A.are paid for all products

  B.all products are paid

  C.for which all products are paid

  D.for all products paid

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• 4The great scientist became world-known in the early 1970s,______ he and another scientist made new discoveries about black holes.

  A.which

  B.where

  C.when

  D.then

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• 5I'd like to live somewhere _______ the sun shines all year long.

  A.which

  B.that

  C.where

  D.in which

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• 6We will take ________ wants to go there for a sight-seeing.

  A.whoever

  B.who

  C.anybody

  D.all that

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• 7Let's just read this little bit_____you've make a mistake.

  A.that

  B.which

  C.when

  D.where

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• 8She wrote a month ago, ______ we've heard nothing.

  A.since when

  B.before which

  C.since that

  D.after which

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• 9Is this the factory ______ you visited last year?

  A.the one

  B.where

  C.that

  D.which

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• 10I wouldn't manage to do it ______ you had explained how.

  A.unless

  B.until

  C.when

  D.since

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