问题标题:
Greatchangesinmyhometowntheseyears.[]A.tookplaceB.takeplaceC.havetakenplaceD.weretakenplace
问题描述:

Greatchanges           inmyhometownthese  years.    
[    ]

A.tookplace    
B.takeplace    
C.havetakenplace    
D.weretakenplace

蔡泽祥回答:
  C
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