你叫李平，是英語系學生會主席。寫一封信給王教授，請他做一個有關(guān)中國歷史的報告。注意信中要包括目的、時間、日期和地點。
?、? Writing
May 19，2002
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