--Where did you put my dictionary after using it this morning? --I put it back I took it.

问题补充：

--Where did you put my dictionary after using it this morning?

--I put it back I took it.

A. at which

B. where

C. there

D. there where

答案：

A. at which

(答案→)B. where

C. there

D. there where

解析：“今天上午你用完我的字典放哪里了？”“我放回到我拿它的地方了。”where引导状语从句，A.不引导状语从句。答案B。