Ответ:

1.My mom's bag is very beautiful

2.He was at my father's room

3.My family's attitude to me is very good

4.My sisters's photos are very beautiful

5.I agree with my friends' desitions

6.Her eyes' color attracts my attantion

7.My room mate's telephon is very modern

8.My teacher's book is thick

9.My friend's hair is short