Who knows the joke about the student smoking, then instructs the director to see their reaction with French fries, and finally gets caught! For completeness,

A class teacher wanted to see how many boys smoked in the class, so he called all the boys one by one. First: Teacher: Do you smoke? Student: No smoking! Teacher: If you don't smoke, you are a good boy. Come on, have a French fries! The students naturally caught the French fries with their forefinger and middle finger. Teacher: Oh, nice posture with a cigarette in your mouth ~ Let's go! Call the parents! Second: Teacher: Do you smoke? Student: No teacher: No smoking? Then have a French fries! At this time, the second student is experienced and carefully holds French fries. Teacher: Why don't you dip in some ketchup? Student: Ah. I paused, then dipped in tomato sauce, but it was too much at once, so I immediately played it with my hands. Teacher: yo, you are quite skilled in playing the ash ~ let's go! Call the parents!

Third: Teacher: Do you smoke?

Student: No.

Teacher: No, French fries!

Because of the experience of the first two students, the students didn't expose anything after eating French fries.

At this time, the teacher said: Do you eat by yourself? Why don't you go back and bring one to your classmates?

Student: "Oh!" Then I picked up the French fries and put them in my ear!

Teacher: No smoking? Let's go Go to the parents!

Fourth: Teacher: Do you smoke?

Student: No smoking.

Teacher: French fries, then!

The students ate it.

Teacher: won't you bring one to your classmate?

The student carefully took the French fries and just held them in his hand.

The teacher shouted: The headmaster is coming! Step on your foot ...

Teacher: Yo! Nice stance ~ Let's go! Call the parents!

Fifth: Teacher: Do you smoke?

Student: No smoking!

Teacher: Well, French fries! Then the teacher gave him two chips.

When the students finished one and were about to eat the second,

The teacher spoke: won't you give me one?

Hearing this, the students quickly gave the French fries to the teacher, so they took out lighters from their pockets and just wanted to "light" the teacher.

Teacher: Go! Call the parents!

Step on your foot ...

Teacher: Yo! Nice stance ~ Let's go! Call the parents!

Fifth: Teacher: Do you smoke?

Student: No smoking!

Teacher: Well, French fries! Then the teacher gave him two chips.

Ah! ? The students immediately threw the chips under their feet and used them.