Dear professor Moss:
　　I am Sandy Lee, an undergraduate student of the department of Electrical and Computer Engineering. At the beginning of this semester, I registered one of your courses, African Literature and Culture. It is a two-hour course held on every Thursday afternoon. Yesterday, I received a notice from my department that a major course, Computer Principle, would be changed to Thursday afternoon. This major course conspicuously influences my credits and it is every important to me. Unfortunately, I can not study your course this semester.
　　Because of your reputation and my enthusiasm in literature, I hope I could study this course in next semester. I also heard that another course of yours, China Literature, is held every Friday afternoon. If the registration of this course hasn't closed yet, I will be so glad to participate in your class.
　　Sorry to bother you, your help will be greatly appreciated.
　　Sincerely yours,
　　Sandy Lee

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