She's not his friend, she's (my/mine)

Task 1. Choose whether each sentence requires a possessive adjective or a possessive pronoun.
1. She's not his friend, she's (my/mine).
2. Robert didn't drive his own car. He drove (her/hers).
3.
That is one of (hers/ her) best friends.
4.
Hid neighbourhood is safe, while (my/ mine) neighbourhood isn't.
5. Did (your/ yours) mother call you yesterday evening?
6.
I don't know (them/their) very well.
7.
I don't know (them/their) daughter very well.
8.
I talked to (my/ me) grandmother for three hours last night.
She will never tell (him/his) about that.
9.
10. I think I got my notes mixed up with (your/ yours).