my family 口语 对话

A: Hello, Mary! How many people are there in your family?
M: Three. What about you, Amy?
A: The same to you, They are my father ,my mother and I. How about you, Tom?
T: Ah, there are five people in my family.
A and M: Who are they?
T: They are my father ,my mother ,my grandparetsand I.