Who are they?
They're office workers.
Who are they?
They're students.
Who are they?
They're salesclerks.
Is she a taxi driver?
Yes, he is.
Are they teachers?
No, they aren't. They're firefighters.
Who's she?
She's a student.
Who's he?
He's a teacher.
Who's she?
She's a cook.
Are they teachers?
Yes, they are.
Is she a farmer?
Yes, she is.
Who's she?
She's a doctor.
Are they pilots?
Yes, they are.
Are they office workers?
No, they aren't. They're engineers.
Is he a taxi driver?
No, isn't . He's a police officer.
Is she a cook?
No, she isn't. She's a nurse.
Who are they?
They're dentists.