all of us know that the world expo will take place in 2010 in shanghai.there will be many visitors from other countories.as a shanghai citizen,we must learn english well.english is the international lanuage.we should study harder and do more exercises.we also can talk with our classmates in english.it will make our english better.in one word 作文人网 你也可以投稿,we must try our best to learn english well in order to welcome the world expo.