oh my english! It was so happy to me to joined italki.but I'm not good at english.so when I chat with other people,I 'm confused,because I don,t know how to impress.I think I made a lot of mistakes in grammar and words.Who can help me to improve my english?I've been learning english for many years,but I can't say and write it very well.Please give me some advice.thanks a lot!