Are these trousers clean or dirty?
They are dirty.
Are these socks long or short?
They are long.
Is this phone old or new?
It is new.
Is this computer big or small?
It is big.
What is this?
It's a computer.
Do you wear trousers to school?
Yes, I do. / No, I don't.
Do you wear socks today?
Yes, I do. / No, I don't.
Have you got a computer?
Yes, I have. / No, I haven't.
What's this?
It's a phone.
What are these?
They are trousers.
What are these?
They are socks.
What color is the phone?
It is red.