my friend introduced me a foreign friend,we communicate through SKYE on the internet,he told me he stayed in China for 6 months,asked me for suggestion on learning Chinese,because we have common interests,we exchange e-mails ... my friend introduced me a foreign friend,we communicate through SKYE on the internet,he told me he stayed in China for 6 months,asked me for suggestion on learning Chinese,because we have common interests,we exchange e-mails ...