综合填空,根据短文内容及首字母提示，补全单词，使短文完整、通顺。
How can we students keep ourselves safe? Here are some tips.
On your way home or to school: Wait for the g____ traffic light, and look left and right before you cross the road. If you see a car coming, don't cross until it really s__. Dress in bright colors, so the drivers can see you c___.
At school: When students around you begin to push, try to hold onto something, or stay in a safer corner. If you f__ down in a crowded place, cover your head w___ both hands.
When there's a fire: Stay calm and leave quickly. Use a piece of wet cloth to cover your mouth and nose so that you don't breathe in s___. If your clothes catch fire, drop to the g_____ and roll from side to side to put out the fire.
For eating: Wash f___ like apples or pears carefully before you eat them. Check the expiration dates(保质期) and if your food looks or smells b____， don't eat it.
For riding on the escalator(自动扶梯): Hold onto the handrails(扶手) and stand on the right side of the escalator because right arms are stronger. It is d___ to run up and down on them. You may fall down because escalator steps are not designed for running.