英语语法！！！急

Dear David:
My name is lihua .I am a student .I live in shanghai.I like to cellect stanps and to do sports.I am interested in English ,can sing many Englishi songs.Some day ,you can listern. Do you wished?
In our class,many classmates wanged to have ner frieng.I hope you can help them
I wish I can visit yours country . Then we can have a good talk and play football together.

看看有没有语法错误，顺便帮忙改～

(这里是日期 比如Jan. 17th,2007)

Dear David,(这里用逗号)

My name is Lihua .I am a student .I live in shanghai, and like collecting stamps and doing sports.I am interested in English ,and can sing many Englishi songs. You will listen some day, won't you?
In our class, many of my classmates wanted to have a pen friend, so I hope you can help them.
I wish I can visit your country. Then we can have a nice talk and play football together.

Yours,
(你的名字)

以上是改完的..:)

Dear David:
My name is lihua .I am a student .I live in shanghai.I like cellecting stanps and to do sports.I am interested in English.I can sing many English songs.Maybe one day ,you will listern it. Don't you wished?
In our class,many classmates want to have new friend.I hope you can help them
I wish I can visit your country one day. Then we can enjoy ourselves and play football together.

这是改完以后的。

我个人认为你没有多少语法错误，只不过应该加强对单词的拼写