The MP4 player was bought yesterday isn’t working now. It needs to be repaired.A. whoB. /C

问题补充：

The MP4 player was bought yesterday isn’t working now. It needs to be repaired.

A. who

B. /

C. which

D. whom

答案：

A. who

B. /

(答案→)C. which

D. whom

解析：本题考查的是定语从句，关系代词，要根据先行词来决定。本题先行词The MP4 player为物体，做下文逻辑主语，故指物的引导词用which，选C。