Is this your coffee? No, it's his / hers.
his.
Whose bike is this? It's his / hers.
his
I've got a blue bag. The bag is my / mine. And the skateboard is yours / your.
mine, yours
This is my cousin and that's her / his pet.
his
Has she got a new dress? Is this her / hers?
hers
She's got flowers. They're her / hers flowers.
her
I've got green shoes. They are my / mine.
mine
This is my brother and that's your / his pencil case.
his
Whose is this bag? It's her / hers bag.
her
Is this yours / your house? Yes, it's my / mine.
your, mine
Whose pupils are these? They're her / hers pupils.
her
Have you got an english notebook? Is this your / yours?
yours
Whose car is this? It's hers / her.
hers
This is her / his cat.
her
These are my / mine books.
my