In a dull class, the teacher speaks in a spittle, but the students fall asleep one by one. Suddenly, there was a stir in the classroom. A dog appeared in the classroom and crouched on the edge of the podium. The teacher put down the chalk, took the chalk out of his hand, and squatted down and picked up the dog. 'whose dog is this? One of my classmates stood up in red, and I could not help kneading her. "Why bring the dog? The teacher asked. "I... when I came to school, doodle came along and it was too late to go..." "What's your dog's name? The teacher asked. "Beep." "Doodle! Such a lovely little dog called such a name, it's so great! Well, look at the name, and sit down first!" Then the teacher began to talk again. After two minutes, the teacher finally unbearable, after the next "self-study" command, the teacher picked up the puppy and touch its head, a child asked the dog: "I?" The dog looked up at the teacher, then winked at everyone. The students seem to forget to be in the class, put out their hands to touch the dog. The dog turned his head in surprise, looking at it and looking at it. The teacher hurriedly say a sentence: "have a class! Everybody this ability disperses, return to oneself of seat. A few minutes later, the teacher took advantage of the front-around a classmate on the blackboard, then strolled over to the dog and said to it: "see you this silly kind, will let you once, said this don't blame! But later can't naughty again, this is the classroom, you know?" The dog looked at the teacher as if he were listening attentively. When the teacher had finished, he had fan ears to the teacher and nodded slightly. The students were so amused by the appearance of the dog that they burst out laughing. The room was calm again, more quiet than before. The students listened to the class carefully, and the teacher's class suddenly became interesting. And the dog, at the moment, is sitting next to his master in the classroom.