My Backpack

Every student may have their backpack. I got three backpacks. This is my second backpack. I bought this backpack last year in summer. There are four layers on this backpack. That's the reason I chose this backpack. And I can store as much things as I want. The most important thing that I store is my student ID and a CASH card. I need my student ID for the computer lad. Or in some reasons, they need you to show your student ID. That's why I bring my student ID daily. A CASH card is using for printing in a computer lab. Sometimes, if I forgot to print my assignments at home, I'll go to computer lab to print it. These two things are in my backpack's first layer. There is another layer inside of the first layer. I put it into the inside layer.