The teacher asked the students who smoked how to tell jokes, and all they asked were.

(Smoking [Scene 6] Teacher: Do you smoke? Boy f: no. Teacher: Good. Have a French fries. I ate it in fear. Teacher: Suddenly shouted: The headmaster is coming! F sweaty palms, but still calmly bowed his head and said, hello, headmaster! Teacher: The headmaster will smell your mouth. F takes out the French fries: No, they are still there. The fire hasn't been lit yet ... [Scene 7] Teacher: Do you smoke or not? Boy G: I swear to God, I will never smoke again. Teacher: You really don't smoke? Ok, let's have a French fries. G naturally took the French fries and ate them clean. Teacher: That's a good boy. What brand of French fries do you usually like? (proudly): Greater China ... [Scene 8] Teacher: Have a French fries. Boy n: no, thanks.