1.dangerous,be safe
2.keep a cool head,follow others
3.yourself,stay under a desk or table
4.as dangerous as,it's OK to leave
5.hitting stone,shouting
根据短文完成内容
1.dangerous,be safe
2.keep a cool head,follow others
3.yourself,stay under a desk or table
4.as dangerous as,it's OK to leave
5.hitting stone,shouting