根据对话内容和首字母提示补全单词，完成对话。
A: Is it a photo of your
family?
B: Yes, it is.
A: W {#blank#}1{#/blank#}
that?
B: He's my grandfather.
A: I {#blank#}2{#/blank#} that
your mother?
B: N {#blank#}3{#/blank#}.
That's my aunt, my father's sister.
A: Is this your mother?
B:Yes，she is. She is a
doctor.
A: Who's this man? Is he y
{#blank#}4{#/blank#} father?
B: No，he is my uncle.
Uncle Mike is my father's brother. And this is my father.
A: Oh, you have a big f
{#blank#}5{#/blank#}.
