用方框中所给单词的适当形式填空，使短文通顺、正确、连贯（每个单词限用一次）
School is where we learn, make friends and grow up. But ___小题1:___ happen daily in schools across the world. We hear reports of students falling down __小题2:___ buildings while cleaning windows. Other students are hit by football on the playground. Three years ago, some students fell down on the stairs and were stepped on by小题3:___, with tragic results.
We feel ___小题4:___ sorry for the loss of lives. There is _小题5:____ we can do to bring the students back, but we can try to prevent (防止) such things from ___小题6:again. You should do the following things to prevent a stampede (踩踏)。
After class or school, don’t rush out at the same time. Wait until there are __小题7:____ people trying to leave.
When you walk with a crowd of people, stay alert (警惕的) and ___小题8:____ your steps. Don’t play around。
Be familiar with your __小题9:__ and learn where the safety exits are.
When there’s pushing and squeezing (挤)， don’t move and try to hold on to something. __小题10:__ stay in a corner until the crowd leaves.
