There is a building. Around the building, there are parking lots, some bench, a truck for something. Outdoors, some students and kids take a rest, or chat each other. Let’s enter the building. There are resting rooms, studing rooms, most important rooms in the building. There are too many books in the room. Someone read a book on the desk. Others find a book, or borrow a book. Where is it? It’s pretty easy. Try it!