My best friend is one of my classmates. Her name is Mary. Every day, we go to school together and go back home together. We often help each other and learn from each other in study.
我最好的朋友是我的一个同班同学，她的名字叫玛丽。我们每天一起上学，一起回家。我们经常互相帮助，并向对方学习。
We have the same hobby-collecting stamps. She has many nice stamps. She is very proud of them. Sometimes she gives some of them to me. I think she is a very good girl. We will be good friends forever.
我们有着相同的爱好——集邮。她有很多漂亮的邮票，并为此十分自豪。有时，她会把其中的一些邮票给我。我认为她是个非常好的女孩。我们会成为永远的朋友。
点评：这是一篇记人的叙述文。先交代了My Best Friend是谁，接着通过事例交代了为什么“我们是最好的朋友”。最后阐述了主题。