The skirt she spent 50 yuan is very beautiful on her．
A. in which
B. on which
C. for which
D. with which
网友回答
A. in which
(答案→)B. on which
C. for which
D. with which
解析：考查定语从句，先行词是the skirt，定语从句spend后面缺少介词on+the skirt，用on which引导定语从句，句意：她花了50元买的裙子穿在她身上很漂亮。选B。