Square dancing to help maintain fitness has caused conflicts between the Damas and the neighboring residents.
A. claiming
B. claimed
C. having claimed
D. to claim
网友回答
A. claiming
(答案→)B. claimed
C. having claimed
D. to claim
解析： 句意：被宣称能够帮助维持健康的广场舞已经导致了大妈和周围居民的冲突。这里是定语修饰Square dancing，因为Square dancing和claim的关系是被动关系，所以用过去分词做定语，选B。