阅读下面短文，从方框中选择恰当的句子填入短文空白处，使短文内容完整、意思连贯。
You need to have healthy eating habits.Breakfast gives you enough energy for the morning. So don’t go to school without it. Friut and vegetables are good for your health, but fast food, like potato chips, will make you fat and unhealthy.    .
   But sometimes it may cause accidents, so stay safe when you are playing sports. It’s necessary to learn about first aid(救助). Then you can help yourselves or others if an accident happens.
  It is the best medicine. When you are ill, try to be happy and you’ll feel better. On the other hand, you may feel sick if you are always unhappy. 
   Many students think it’s cool to smoke and drink. But they don’t know smoking and drinking can cause many illnesses. You should say no to smoking and drinking.

A. Playing sports can also help you keep fit. B. So, be happy to be healthy. C. Happiness is important for your health. D. So eat the right food to keep you healthy. E. You shouldn’t smoking and drinking.