We can't keep on living like this.on?为什么有on?

We can't keep on living like this.on?为什么有on? 初一作文；How can we keep safe on the road 两篇完形填空,1.Three things are necessary for us to l__1__ on.They are air,water and f__2__.We eat meals t__3__ or three times every day.We drinkwater several times a day.We breathe air day and n__4__.If a man dosen't t__5__ any food he can liv we can't keep him ____(out)填正确形式 If there are too many people on the earth,we won’t have enough room to __________.A.live B.liv 英语翻译we can't live on air. We can't go on like this We can not keep on studying or doing our work all the time if we don't want to be b____ at school. when we have left school we can _____ to learn A:keep B:keep on C:go on 1.Come on ,children!Help ( ) to some ( ).A.yourself ; meat B.yourselves ; chicken C.yourselves ;beefs2.What's your father doing now?--He( ) the room.A.cleaned B.cleans C.has cleaned D.is cleaning3.We have two rooms ( ),but I can't decide ( ).A.to liv We keep on going on and on What we can or can't do on the farm?We can()on the farm.We can't()On the farm. We can't live on the earth _______ animals We can't _______(arrive) late on school days. IT‘S heart troubie.we can't go on forever we can't eat ( ) drink on the train. We can't see clearly on a ____ day Sometimes you can choose,but sometimes you can't,the only thing we can do is keep the hope.