I've changed a lot. I was short when I was young, but now I am tall. I used to spend a lot of time playing games with my friends, but now I have to keep studying. I used to be quiet, but now I am outgoing and active. I often take part in various activities. I used to hate physical education class, but now it is my favorite class. I used to go to school on foot, but now I go to school by bike. Is it a good thing or a bad thing? As we grow up, we will have many changes.