Is it dirty?
Yes, it is.
Is it clean?
No. it isn't.
Are they clean?
Yes, they are.
Are they dirty?
No they aren't/
Is it slow?
Yes, it is.
Is it fast?
No. it isn't.
Are they slow?
Yes, they are.
Are they fast?
No, they aren't.
Is this coffee?
Yes, it is.
Is this orange juice?
No, it isn't.
Are these cups
Yes, they are.
Are these tops?
No, they aren't.
Is it long?
Yes, it is.
Is it short?
No, it isn't.
It this a pillow?
Yes; it is.
Is this a cat?
No, it isn't.
