20分求65个单词左右英语作文

The World Expo is coming .Firstly,Our environment must be protected.We mustn’t spit or throw rubbish in public places,bad behavior must be punished.Secondly,We must study English hard.Because Shanghai will be showed for all over the world and so many foreigners will visit the city in 2010.In short,we must be polite,kind and friendly to welcome the World Expo!