假如你是育才中学的学生会主席李华,准备邀请本市某高校的外籍教授Brown来校做报告,请用英语写一封电...

Dear Professor Brown,
Hello.This is Li Hua,chairman of the student union of Yucai Middle School.You have rich experience in English learning and you are very famous among us students.So we would like to invite you to give us a lecture on how to learn English on next Sunday morning.Professor Brown,will you be free then?Looking forward to your reply.
Best wishes
Yours