选填的词有：
outside dangerous come open after can't stop go home
arrive have to get to don't have to in front of Don't put
文章：
Be a bus Safety Superstar
Don't_____late for the bus.You have to_____ the bus stop five minutes before the bus_____.
_____put.You can seat _____you get on the bus.You_____talk too much on the bus.
Don't_____your head or arms_____the windows.
Don't run _____ the bus .It's_____.
You have to _____after you get off the bus.You _____ play outside without your parents.