underline the correct item.
is Ruth yours/your sister?
this camera isn't mine/my
this little puppy isn't our/ours
Tina and Susan are my/mine friends
what's yours/her phone number?
is this skateboard his/her?
their/theirs house is very modern.
are these books her/hers?
what is his/hers address?

прошу вас помогите.заранее спасибо