With more people keeping pets, a growing number of conflicts pets have been taken to court in Shanghai.
A. concerned
B. to concern
C. being concerned
D. concerning
网友回答
A. concerned
B. to concern
C. being concerned
(答案→)D. concerning
解析：考查非谓语动词。句中concerning作介词，表示“关于，就……而论”。句意：越来越多的人养宠物，在上海越来越多的关于宠物纠纷被告上法庭。故D正确。