It was not until 1911, _______ the first vitamin was identified, _______ people realized the importance of it．

试卷相关题目

• 1Our teacher makes good use of any time______ he can spare.

  A.which

  B.that

  C.when

  D.in which

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• 2They've won their last three matches. ________I find a bit surprising

  A.that

  B.when

  C.what

  D.which

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• 3Tomorrow would be Christmas Day, and she had only $1.87  ________.

  A.with which to buy a present to Jim

  B.by which to buy Jim a present

  C.with which she could buy a present for Jim

  D.in which to buy Jim a present

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• 4______ can be seen from his face, my father is quite satisfied with my final scores.

  A.That

  B.As

  C.It

  D.Which

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• 5Now the Internet is a popular channel ________ the public voice their opinions and show their strength.

  A.by that

  B.through which

  C.through that

  D.by which

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• 6Remember that there is still one point ________ we must make clear at the conference tomorrow

  A.where

  B.why

  C.when

  D.that

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• 7Guilin is the most beautiful place _______ people all over the world want to visit.

  A.where

  B.which

  C.what

  D.that

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• 8Recently I bought an ancient Chinese knife,_______ was reasonable.

  A.which price

  B.the price of which

  C.its price

  D.the price of that

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• 9The retired workers were invited to the company， _______ surprise，changes had been so great over the years.

  A.whose

  B.who

  C.to whom

  D.to whose

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• 10The poor ______ living in the mountain ____ top is covered with green trees.

  A.are; which

  B.are; of which

  C.is; whose

  D.are; whose

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