--Where does your uncle work Tom ?--He is in a hospital he works as a doctor.A. thatB. wh

问题补充：

--Where does your uncle work, Tom ?

--He is in a hospital he works as a doctor.

A. that

B. which

C. where

D. what

答案：

A. that

B. which

(答案→)C. where

D. what

解析：本题是一个修饰地点在医院的定语从句，修饰地点通常加关系词where，故选C。