—Is that Helen’s aunt?---.That is Mary’s aunt.A. Yes she isB. No it isn’tC. Yes it isD. No

问题补充：

—Is that Helen’s aunt?

---.That is Mary’s aunt.

A. Yes,she is

B. No,it isn’t

C. Yes,it is

D. No,he isn’t

答案：

A. Yes,she is

(答案→)B. No,it isn’t

C. Yes,it is

D. No,he isn’t

解析：根据回答语后面意思与问句不一致，应该是对问句的否定，故用No，对不明确

身份的人通常用代词it代替，故本题选B。