假定你是李华，准备在高中毕业后的暑假参加美国耶鲁大学的暑假课程，(Yale summer session 2015)请写

Dear Ms. Sullivan, I’m Li Hua, a middle school student from China. I’ll graduate from high school this year, and I’m planning to apply for the Yale Summer Session 2013. Now I’m writing to ask about several questions concerned.Firstly, I’m curious to know about the course arrangement. How many courses will you offer in all and what subjects will it cover? Since I’m interested in computer science very much, I would very much like to take computer related courses. I would also want to know the time schedule of these courses to see whether I’ll have time to visit other places in America on weekends. Secondly, can you introduce boarding arrangement during the Summer Session? Are all the students living on campus or shall we rent houses in advance? Thank you!Looking forward to your reply!Best regards, Yours sincerely,Li Hua