Do you know the lady is interviewing our teacher. Yes she is a reporter from CCTV.A.

问题补充：

Do you know the lady is interviewing our teacher.

-- Yes, she is a reporter from CCTV.

A. which

B. who

C. whom

D. whose

答案：

A. which

(答案→)B. who

C. whom

D. whose

解析：考查定语从句。“你认识正在采访我们老师的那个女士吗？”“是的。她是来自央视的记者。”先行词the lady指人，引导词应该用who或whom，引导词在定语从句中作主语，故用who。故选B。