---- Do you know the man 　　 is reading the book over there?

----Yes, he’s Mr. Green, our PE teacher.

A. which　　 B. what　　 C. whom　　 D. who

–Do you know the man              is running along the street?

–Yes.He is our math teacher.

A.who     B.whom     C.which    D.whose

-----Do you know the man ________ is reading the book over there?

--------- Yes, he is Mr. Green, our P.E. teacher.

–Do you know the man              is running along the street?
–Yes.He is our math teacher.