-Your sister isn’t a nurse is she?. She teaches English in a middle school.A.

问题补充：

---- Your sister isn’t a nurse, is she?

----- . She teaches English in a middle school.

A. No, she isn’t B. yes, she is C. Yes, she isn’t

答案：

解析：英语中反义疑问句的回答只依据事实回答，B选项首字母没大写，C选项前后矛盾，故选A。