(1)Is Frank his father's name?
或：
(2)Is Frank his father?
肯定回答：
(1)Yes,it is.
(2)Yes,he is.
否定回答：
(1)No,it isn't.
(2)No,he isn't.
补充：
陈述句：His father's name is Frank.
否定句：His father's name isn't Frank.
一般疑问句：Is his father's name is Frank?
Is Frank his father's name?
Is Frank his father?
特殊疑问句：What's his father's name?
回答：It's Frank.