Cheng Yi is a great teacher and he has many students. Yang Shi is one of them. He studies very h all his life. One day, Yang Shi talks about something with his friend and they have d ideas. So they want to ask Cheng Yi for help. It is a cold w afternoon and it's quite snowy. (他们) go to Cheng Yi's home in a hurry. When they get there, Cheng Yi is (睡觉) in his room. They don't want to wake up their teacher, so they stand and (等待) in the snow. After about (四十) minutes, Cheng Yi gets up, and he sees his two students standing at the (大门) in the thick snow like two snowmen. Their (鞋子) are all wet. Cheng Yi feels moved and asks them to come into his (温暖的) house.
