【正确答案】 March 17
Dear Professor Li,
I am Zhang Han, a professor from Foreign Language College at Qingdao University. We would like to invite you with great honor to come to our university and deliver lectures to the students. The lecture session will extend from April 1 to April 7, which is on the topic of English pragmatics. All of the English majors in our university ranging from freshmen to seniors will attend the lectures.
For this tour, we will provide you with generous honorarium, the accommodation and the round-trip tickets. We are looking forward to receiving your reply.
Yours faithfully,
Zhang Han