Are these her socks?
Yes, they are.
Are these her pants?
No, they aren't.
Are these her dresses
Yes, they are.
Are these his shoes?
No, they aren't.
Is this his shirt?
No, it isn't.
Are these his shoes?
Yes, they are.
What is he wearing?
He's wearing boots.
What's he wearing?
He's wearing a sweater.
