What I always carry in my bag

I have nothing special in my bag actually. I always carry a book to read, some water to drink and my phone. Firstly, I read a book before starting the classes or recess time that’s why the book is always necessary for me. Secondly, I sweat really a lot so I need to drink some water every time I’m thirsty and for lunch time. Lastly, As soon as I finish the school I need to call my mom or my friends and text somebody. That is why I always carry these things.