That my family.That's my fater .she?my mother.Who's she?She's sister.And who they?

问题描述:

That my family.That's my fater .she?my mother.Who's she?She's sister.And who they?
They're my grandparents.空格处分别填什么?

That is my family.That's my father.She is my mother.Who is she?She is my sister.And who are they?They're my grandparents.