Directions: Suppose you are the dean of the History Department, Peking University. You want to invite Professor Herb Jason, a well-known scholar of Chinese history, to come to attend an international conference on Chinese history. You’ll cover the following points:
1.The purpose of the invitation
2.The time and place of the conference
3.Ask him a favor of presenting a lecture to your students during his stay
Write your letter in no less than 150 words. Do not sign your own name at the end of the letter; use Li Ming instead. You do not need to write the address.