My sister is very clever.
It's clever of you to know that.
I have made some stupid mistakes.
I hope I didn't do anything stupid.
It was cheap enough for him to buy.
The things here are cheap.
These CDs are cheap.
It was too expensive for him to buy.
That's a very expensive camera.
Her clothes are all very expensive.
He has nothing to eat but stale bread.
The milk has gone stale.
It was loud enough for them to hear.
I heard a loud noise just now.
Speak louder please.
It was too high for him to climb.
He is so clever that he always gets high marks.
Can you see the high building over there? That's a bank.
The bread is as hard as stone.
What is the hardest thing in the world?
She has a soft voice.
The cloth feels soft.
It was too sour for her to eat.
The grapes are sour.
The fruit was too sour to eat.