Is he a postman?
Yes, he is.
Is she a teacher?
No, she isn't.
What does she do?
She is a pupil.
Is he a pupil?
No, he isn't.
What does he do?
He is a doctor.
Is he a pilot?
No, he isn't.
What does she do?
She is a housewife.
Is she a housewife?
No, she isn't.
Is he a fireman?
Yes, he is.
What does he do?
He is a pilot.
Is she a nurse?
Yes, she is.
Is he a zookeeper?
No, he isn't.