假如你是李伟,给父母写一封信介绍大学生活，英语作文啊...

How are you? I should have written to you earlier.However, I am too busy to remember to write to you.Let me introduce to you my college life.I usually get up at 7 o 'clock every morning.After breakfast ,I and my classmates attend to class as senior high school.The most difficult thing for me to adjust is that the university classrooms are changed along with the course.So after class, we arrive at the classroom in a hurry.In addition , I make a lot of friends in university.Please don't worry about me.
我只提供大致的内容，你还可以加以扩展。另外，格式也要注意哦。