Is it a fat dog?
Yes, it's a fat dog.
Is it a white and fat rabbit?
Yes it is.
Does she have a dog?
Yes she does.
Do you have a pet?
Yes I have. / No, I don't have.
What is this?
It is a long snake.
Is he old?
No. He is young.
Is the turtle fast or slow?
The turtle is slow.
Are they cats?
No they are not / aren't.