It / sleepy?
Yes, it is.
We / friends?
Yes, we are.
It / hungry?
No, it isn't.
They / friends?
No, they aren't.
It / a penguin?
Yes, it is.
He / doctor?
Yes, he is.
They / single?
No, they aren't.
He / Portuguese?
Yes, he is.
I / vet?
No, I am not.
He / cold?
Yes, he is.
She / Brazilian?
No, she isn't.
He / a pilot?
No, he isn't.
You / happy?
Yes, I am.
It / American?
Yes, it is.
You / a student?
Yes, I am.
She / in love?
Yes, she is.