ARE THEY TEACHERS?
No, they aren't.
ARE THEY VETS?
Yes, they are.
ARE THEY PUPILS?
Yes, they are.
ARE THEY BUILDERS?
Yes, they are.
ARE THEY WAITERS?
No, they aren't.
Is she a vet?
Yes, she is.
Is she a builder?
No, she isn't.
Is he a waiter?
Yes, he is.
Is he a vet?
No, he isn't.
Is he a pupil?
Yes, he is.
