Is that (her/hers) book?
HER
Well, it isn't (my/mine).
MINE
(Who's/Whose) car is that?
WHOSE
It's (our/ours). Nice, huh?
OURS
Microsoft owes (it's/its) success to Windows.
ITS
That's why (its/it's) the biggest software company in the world.
IT'S
Those aren't (your/yours) socks.
YOUR
These blue ones are (your/yours).
YOURS
John, this is Tom. Tom is an old friend of (me/mine).
MINE
My sisters borrow (my/mine) clothes, and I borrow (their/theirs).
MY / THEIRS
I borrowed my (dads'/dad's) car.
DAD'S
My (parent's/parents') new house is great.
PARENTS'
I like (Emmas'/Emma's) new boyfriend.
EMMA'S
The (children's/childrens') room is upstairs.
CHILDREN'S
