Hi Mr. Xu, my name is Uri Quintal. I am an ESL and Spanish teacher graduated from the Arizona State University in The United States. I offer some basic ESL lessons for non-native English speakers in order to help students not only to speak another language but to think and dream in another language for a very cheap price. Please feel free to contact me via Skype (uriquintal) or via italki.com if you are interested. Have a nice day! :)

天下哪有免费的午餐哪大哥，人家陪你练口语很耽误时间的好不好当然要收费啦，你可以自己找找想学中文的然后你教他中文他教你英文啊，这是语言交换网站嘛。