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代詞：人稱、物主、反/自身、指示、相互、疑問、不定代詞

 As they were classmates, ________ was no wonder that they should do the work in the same way

  A) This            B) That           C) There         D) It

代詞：人稱、物主、反/自身、指示、相互、疑問、不定代詞
As they were classmates, ________ was no wonder that they should do the work in the same way