书面表达你叫李平是英语系的学生会主席写一封信给王教授请讲述一个关于中国历史的报告注意信中要包括目的

Dear Professor Wang，
I am writing to invite you to give a lecture on Chinese history on behalf of the Student Union of the English Department. We have planned to have such a lecture at 2:30 p.m. in Lecture Hall 419,onAugust 25. Iam looking forward to your lecture. Please inform us in advance if you can not come.
Sincerely yours
Li Ping

hi:
i'm li ping, 剩下自己脑补呗