1)I'm Mary's husband.
2)This is Grandma's shair.
3)This is my father's mobile.
4)Sue's bag is in the classroom.
5)This is my son's watch.
6)Our dog's name is Scruffy.
7)We're in Granddad and Grandma's house.
1) Mary's
2) Grandma's
3) Father's
4) Sue's
5) Son's
6) Dog's
7) Grandpa's and Grandma's