英语高手请进，帮我写篇文章，追+50分

David,
How are you?I'm so glad to be you net-pal.I'm a middle school student named Li Hua,living in Shanghai.I'm fond of collecting stamps and most of the sports activities.I'm also very interested in English.I can sing a lot of English songs.My classmates want to find net-pals and make friends with them as well.They are eager to get help.Summer holidays are coming.I'd like to make a trip to Britain,too.
Yours,
Li Hua

Dear David,
How are you?How is everything going?I'm Li Hua who a middle school student is.I am living in ShangHai.I like collecting stamps and sporting.Do you like them?I am interested in English,and I also can sing a lots of English songs.That makes me wondeful.Some classmates in my class also want to find net-pals,I hope you can help them,ok?I have a dream that visit to England.I hope that can be true.
Yours,
Li Hua

Shanghai,China
David,
How are you?I'm so glad to be you net-pal.I'm a middle school student named Li Hua,living in Shanghai.I'm fond of collecting stamps and most of the sports activities.I'm also very interested in English.I can sing a lot of English songs.My classmates want to find net-pals and make friends with them as well.They are eager to get help.Summer holidays are coming.I'd like to make a trip to Britain,too.May our friendship lasts forever.
Yours,
Sincerely
Li Hua

David, How are you? I'm Li Hua, is a student, I live in Shanghai. I like philately and sport. I am interested in English, I can sing a lot of English songs. The Class 4 students also find some net friend, they hope gained help and I want to England.

英语能力有限，呵呵

David,
How are you? I am a junior middle school student living in Shanghai. My name is Li Hua. I like collecting stamps and doing exercise. I’m interested in English and know quite a lot of E-songs. My classmates are also looking for net-pals, wishing to get help from you. I am expecting a trip to Britain. I hope we can be good friends. Thank you.
Yours,
Li Hua

E...
How to send a e-mail in English???
Which system??