Are they police officers?
Yes, they are.
Is he a nurse?
Yes, he is.
Are they vets?
Yes, they are.
Is he a bus driver?
No, he isn't.
Is she a teacher?
No, she isn't.
Is she a doctor?
No, she isn't.
Are they dancers?
No, they aren't.
Are they singers?
No, they aren't.
Is she a cook?
Yes, she is.
Is he a student?
Yes, he is.
Are they farmers?
Yes, they are.
Are they firefighters?
No, they aren't.