Correct explanation: MSN, Yahoo and gtalk are all practical, but only if you know foreigners can you add them as friends, so you must have their ID or email address and tell them through them before you can add them. So I think it is not feasible to use it without knowing foreigners. Skype is a good voice software. But only if you know each other's email address can you add friends. Only ICQ can add friends at will, and there are different countries. QQ is a chat software that imitates ICQ. But only people in China use it. Therefore, in order to practice oral English, I suggest you go to www.omegle.com first. This website is a one-on-one random chat, and you can meet people from different countries. Know some foreigners. Then add it as a friend. Practice oral English again. Any chat software will do, but I recommend MSN, because it is the most widely used chat software in the world. But Americans generally use AIM or facebook, but they are blocked by China, so it is better to apply for MSN. In addition, if you want to chat directly and don't want to add friends, you can also go to this website: www.chatroulette.com, which is somewhat similar to omegle, but the number of online users is several times that of omegle. It's a one-on-one video, and you can type and chat, and you can see people all over the world. Both websites can be used directly, and there is no need to register accounts and other programs, which is quite convenient.