Choose the right possessive pronoun.
1) Is this yours / your daughter?
2) It's theirs / their problem, not our/ours.
3) It's a good idea of your / yours to go to the bar tonight.
4) Are these her / hers shoes?
5) We're going swimming with some friends of our/ours.
6) Is it yours / your article about spiders? -No, it's not my / mine.
7) We know their / theirs address but they don't know our / ours.
8) That's not my / mine wallet. Mine / my is black.
9) His cottage is bigger than her / hers but her / hers is nicer.
10) My / mine parents live nearby, and your / yours?