Hi 张文杰, you've come to the right place! By being an active member of the italki community, there are plenty of ways to make friends while practising your English. Under thr 'community' menu, you'll see articles, have a chance to write a notebook for correction, ask questions about language or start a discussion topic. Try to find a language partner if you want some casual speaking practice and find a suitable teacher if you want more focussed lessons. Good luck! Hugh