Dear Miss ，
You know that I enjoy your class very much.It’s interesting and fantistic.However,Imissed your class last Thursday.A good fri of my senior high school came to see me.So I have to welcome him and take him look around our school.what should I to make up the class? I should let you know in advance .But there are some reasons that I can’t tell you.I hope you will accept my sincere apology.
Your student,