This is the book I bought yesterday I spent 8 yuan . A. on which B. for which C. in whic

问题补充：

This is the book I bought yesterday , I spent 8 yuan .

A. on which

B. for which

C. in which

D. at which

答案：

(答案→)A. on which

B. for which

C. in which

D. at which

解析：本题考查定语从句中介词的选用。spend some money on sth为一固定搭配。故选A。