It is recognized that the part the UN plays in international relations is important.
A. in which
B. where
C. that
D. of which
网友回答
A. in which
B. where
(答案→)C. that
D. of which
解析:考查定语从句。the part是先行词,play a part in在......中扮演角色,定语从句缺少宾语,用that/which引导定语从句;A、B作状语,D作定语,相当于whose,排除A、B、D。故选C。