【答案解析】One possible version
Dear Sir or Madam,
I"m a senior student in a university. So honored am I to be asked by my teacher for writing this letter to invite you to come to our school and deliver a speech about job interviews. Here are some details as follows.
This speech will be arranged on the next Friday at 6:30 p.m., and our school will send a car to pick you up. It will be held at the musical hall of our school, which can accommodate at least 1,000 people. According to statistics, there will be about 700 students coming to listen to your speech.
Looking forward to your reply and your coming. If you have any questions, don"t be hesitated to contact me at your convenience.
Yours faithfully,
Jason