假设你是李华,你在读美国中学生Jack的博客时了解到他即将作为一名交换生来北京学习,希望能寄宿在一名擅长英语的学生家里,

Dear Jack,
I'm very glad to learn that you're coming to Beijing as an exchange student and want to stay
in a local home with a middle school student who can speak excellent English.
I'm a high school student,and it's my sincere hope that you can stay with me.I am good at English
and can communicate with foreigners fluently.Besides,I like reading and traveling in my spare time,
so if you are with us,I can take you around Beijing and let you know more about our brilliant Chinese
culture.
Both my parents and I are friendly and enthusiastic in personality.So I believe we can be good
friends.I'm sure I will do what I can to help you with your Chinese.I'm looking forward to your
coming.
Best wishes.
Yours,
Li Hua