what should we do when we are on a bus?

what should we do when we are on a bus? When we are on a bus ,we should be ready ___the old man and We should give seats to_____ when we are on bus.A.old B.olds What should we do when we are lost what should we do when we have a fever ?/是什么意思 When we are on the bus,we should give s什么 to people in need. when we get on the bus ,we should wait ( ).A.in a line B.wit what should we do when there is a fire? What should we do when there"s a fire 作文 What should we do when there is a fire what should we do when some thing we want is not on hard? what should we do when we take a bus?当我们在公交车上的时候我们该怎么做?写一篇英语