--I don’t know she is.Mrs Smith says she is a shop assistant.A. whereB. whoC. whatD. ho

问题补充：

--I don’t know she is.

--Mrs Smith says she is a shop assistant.

A. where

B. who

C. what

D. how

答案：

A. where

B. who

(答案→)C. what

D. how

解析：根据答语内容-Mrs Smith says she is a shop assistant.可知答案为C