—Do you know the teacher classes are interesting and exciting?— Yes she is Mrs. Zhang.A.

问题补充：

—Do you know the teacher classes are interesting and exciting?

— Yes, she is Mrs. Zhang.

A. which

B. whose

C. who

D. that

答案：

A. which

(答案→)B. whose

C. who

D. that

解析：此题考查定语从句的引导词，在从句中作定语故用whose。