They are close friends and their friendship ______college days.

A. dates back to    B. dates back     C. dates to   D. dates back from

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I took mathematics and physics because I think that ________ very important for me to make further research in this field.

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I took mathematics and physics because I think that ________ very important for me to make further research in this field.

A.what is               B.they are                     C.this                           D.which are

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---- Who is making so much noise in the garden?

  ---- _____ the children.

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科目：高中英語 來源：2012-2013學(xué)年河南六市高三第二次聯(lián)考英語試卷（解析版） 題型：單項填空

 _____ for the young man to spit in the subway!

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C. What bad manners they are              D. What bad manners it is

 

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________a slight chance that Guo Jingjing will take part in the 2010 London Olympic Games.

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