3.This is David and Franks' dog.
4.She has got two brothers.Her brother's room is on the right.
5.She has got a brothet and a sister.Her brother's teacher is from London.
6.What is your sister's name ?
7.The Brown's pet is very nice
8.These are my friends.The boy's grandmother's works in a hospital.
9.My aunt's friend works in London.
10.I like Kate and Bobs' grandmother.