你叫李平，是英语系学生会主席。写一封信给王教授，请他做一个有关中国历史的报告。注意信中要包括目的、时间、日期和地点。

LiuxuePaper.com's Writing

May 19，2011

Dear Professor Wang：

On behalf of the Student Union of the English Department， I am writing to invite you to give a lecture on Chinese history.

We have planned to have such a lecture at 2：30 p. m. in Lecture Hall 419， on May 25.

Looking forward to your lecture. Inform us in advance if you can not come.

Sincerely yours，

Li Ping

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