Question

—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

Answer 1

B

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。