Listen, then ask and answer
Q1:How old is wu Chen's grandma?
She is sixty.
Q2:How old is Wu Chen's mother?
She is thirty-seven.
Q3:How old is Wu Chen's father?
He is forty-one.
Q4:How old is Wu Chen?
He is ten years old.

Toby: How old is your grandma? Do you know?Wu Chen: She is sixty.
Toby: And your mother?
Wu Chen: My mother is thirty-seven.Toby: Is your father thirty-seven, too?Wu Chen: No. He is forty-one.
Toby: How old are you, then?'Wu Chen:T'm ten years old.Toby: A nice girl!