Boys and girls. May I have your attention ,please? These days,the H1N1 has spread(传播)widely around the world .What shuold we do?Let me tell you.We can try to go to the public places less.Than we are supposed to wash our hands as often as possible.Next it is very important for us to keep the windows and the doors open.What else?We should have enough time to sleep.And we can do more exercise so th..