Fred is my friend. He's a doctor. I'm not a doctor. I'm a teacher. Bess is not a teacher. She's a student. We're in my room now. We're at the table. Please give me three cups, Bess. Thank you. Put a spoon into your cup, Fred.- Are you a teacher?- Yes, I am.- Is your friend a teacher, too?- No, he isn't.- Is that boy a student or a schoolboy?- He's a schoolboy.- Is this his brief-case?- Yes, it is. Please come in. Please go out. Please come into the room. Please go out of the room.