The teacher asks the students to recite a passage from the text, and one of the students volunteers to recite it. The teacher's name is cheng, and he is the most popular student in the class. He is the one who memorized the text the first time the teacher asked him to do so, but this time, he is unable to remember the name of the teacher. He asks the teacher to let him recite the text again, and the teacher says that it will be no problem. He then tells the students that they should stay with him after school and recite the entire text.