29.A:That's my family.Those are my grandparents.
B:Who is she ?
A:(1)
B:(2)
A:They are my brothers.
B:Is this your sister?
A: (3)
B: (4)
A:Lily.
B:Oh,I see. (5)
A:Thanks!You,too.
A.Yes,she is.
B.She is my mother.
C.Have a good day!
D.What's her name?
E.Who are they?