题目内容
— Are Maria and Helen sisters?
— No．__________ they’re good friends．
A．And B．But C．Then
B
解析试题分析：句意:-Maria和Hellenic是姐妹吗？-不，但他们是好朋友。根据句意可知，Maria和Helen不是姐妹，但是他们是好朋友。故这两句话之间是转折的关系。and 表示连接，在句意上是顺承的关系；but 表示转折，意思是但是；then 是一个副词，然后。故选B。
考点：考查连词。
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