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He was about to tell me the secret_____ someone patted him on the shoulder.

  A. as   B. until    C. while   D. when

D


解析:

 在主句是be about to do sth.的情況下,從句用when引導。

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科目:高中英語 來源:福建省泉州一中2009-2010學年高二下學期期中考試英語試題 題型:閱讀理解


When we donate blood, a small amount is usually taken in advance for at least ABO and Ph systems typing. If you are O+, the O is your ABO type and the + is your Rh type. It is possible to be A, B, AB, or O as well as Rh + or Rh-.
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When we donate blood, a small amount is usually taken in advance for at least ABO and Ph systems typing. If you are O+, the O is your ABO type and the + is your Rh type. It is possible to be A, B, AB, or O as well as Rh + or Rh-.

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