The sheep are nice!
Yes, they are very nice and cute! (your answer)
It's a small crayon.
It isn't a small crayon. It's a big crayon/one.
These bags are new and nice.
They aren't new and nice. They are old and NOT VERY NICE.
She is an ugly girl.
She isn't an ugly girl. She's a nice girl.
These cows are very old.
No, they aren't old. They are very young.
They are puppies (chó con)
No! They are very old dogs. They aren't puppies.
It's a red bus.
It isn't a red bus. (It's a __ bus)
It's a longggggg pencil.
It isn't a long pencil. It's a short pencil/one.
This cat is very young.
No, she isn't. She is very old.
These cats are very old.
These cats are very young. They are kittens.
It's a small spider.
It isn't a small spider. It's a big spider.
It's a little chicken.
No, it's a big (and nice) chicken.
This is a cute cat.
This isn't a cute cat. (It looks scary)
"We are ___ boys and girls."
young
It's a nice dog.
It isn't a nice dog. It's an ugly dog.