If you wish to obviously improve your command in English, I strongly suggest you do it by reading newspaper for hours daily, by using a dictionary. Try to learn at least 50 words everyday, from the paper. Study patiently, then you'll surprisingly detect the great improvement within 1 year.

Here are the Italki English/ Chinese speakers. Email some of them and invite them to be your friend or language partner. Set up a time to chat on MSN or SKYPE. Remember the time differences between countries, If there is a green light next to a person's name, it means that they are on line. Good luck! Click on here: http://www.italki.com/partners/1-Chinese-English200-00-0.htm

I want to be your learning friend, may I?