--Do you know the man John Brown?
---I only know he is called.
A. called, how
B. called, what
C. who called, how
D. whom called, what
网友回答
A. called, how
(答案→)B. called, what
C. who called, how
D. whom called, what
解析：called(=who is called)是过去分词作后置定语。