*On a rainy day you sat in class, everything around you seemed gray and gloomy. You and your classmates hear the door creak open then close. An unfamiliar teacher entered into the classroom, his looks seemed cold. You could tell he’s probably strict and a serious individual, “Hello, I’m Mr. Satoshi. I’ll be your substitute for your teacher for the day. Get out your textbooks and open to where you and your teacher stopped at last class. And get to reading.” He ordered.* *What will you do?*