_________ happened to be no one in the building when the fire broke out.  

A. It
B. There
C. This
D. That
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科目：高中英語 來源： 題型：單選題

_________ happened to be no one in the building when the fire broke out.


  1. A.
    It
  2. B.
    There
  3. C.
    This
  4. D.
    That

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科目：高中英語 來源：江蘇專項題 題型：單選題

_________ happened to be no one in the building when the fire broke out.  
[     ]
A. It
B. There
C. This
D. That

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