A regretful thing450字作文

In the past three years, the life of middle school impressed me deeply. Many stories happened. The following os one of them.
In my class, I had a good friend, his name is Li Ming. One day, a little thing caused a serious quarrel between us. I was very angry and upset. I didn’y want to say anything to him. The following weekend he went to Australia with his family, but I didn't say sorry to him. I lost my friend forever.
That is a good lesson for me. I realize if you make some mistakes, you should correct them at once, or you may regret forever.