I had an unhappy experience last month. I got into a fight with my best friend at school.One day, I didn't finish my homework and wanted to copy my best friend's homework, but she refused. I was so angry that I didn't talk to her any more. After talking with my parents at night, I realized my mistakes and said sorry to her the next day. After that, we became good friends again.From this experience, I've learned that it's not good for us to copy others' homework and we should finish our homework by ourselves on time. Besides, when we realize our mistakes, we should correct them at once.