Dear Zhanggui,
I am glad to receive your letter.is everything well?You asked me how to learn english well in your letter.Actually there many effecient ways.
Firstly, you can join in a english training class,which is the fast as well as expensive way to improve your oral english.Then ,english can be improved by reading english newspapers,watching english tv programs and watching movies.Besides,you can also enhance your spoken-english by singing english songs.Finally,making friends with native speakers is also a good way .
In a word,you can improve your english in many ways. I believe that you can find the best way for yourself.I will be very happy if these ways can help you.
Best wishes.
Yours
Lihua