根据提示，以"How to keep safe"为题写一篇80词左右的英语作文，要求层次清晰，语句通顺，书写规范．

要求：

1．文中不能出现真实校名和人名，否则不得分．

2．题目和开头已给出，不计入总词数．

Safety is important． As a student， we should learn to protect ourselves and keep safe． 　 But how can we keep safe ？ Here are some of my suggestions ．

First of all ， You should obey the traffic rules ． When you cross the road ， you should first look at the left then the right ． You mustn't play football on the road ． If we are careful enough ， we can reduce the traffic accidents ． Second ， if we are in danger ， we must call the police for help in time so that we can keep safe ． Third ， we ought to eat healthily and safely ． Eating food that goes bad will do harm to our health ． Besides ， While we are at school don't run after each other in the classroom ， and don't crowd each other when we go upstairs or downstairs ． last but not least ， summer is coming ， never go swimming alone ．

In short ， safety must come first!If we learn all these things by heart ， we can enjoy a much safer life ．