[解析]
Dear Sir/Madam,
I am a student in China and I plan to go to Britain to attend a summer school during the vacation.(说明写信的目的)I've seen your ad,and I'd like to know something more about your six﹣week English course.First,when will the course start (上课时间)and how many class hours are there per week?(班级大小) Besides,I wish there would not be too many students in a class.【高分句型】I'd also like to know how much I have to pay for the course (收费情况)and whether accommodation is included(住宿类型).【高分句型】Would there be host family or university dormitory?
I am looking forward to your early reply.
Yours faithfully,
Li Hua