we should do our best to prevent our earth___.A being polluted B from polluting 答案是a 为什么?

We should -------(do) our homework now. What should we do ____________(keep) our classroom clean what should we do to protect our environment? We should do our homework by( )[o开头］ what we do should be to our heart怎样翻译? We should do our best____________(help)the poor. we should do our best to f____ germs we should do our best to ____ germs We should do our utmost in doing sth.如题. We.should.do.our.best.to.help.We.should.do.our.best.to.help.d____ people.like.bind.men We should do our ------(good) to do more exercise.It’s good for our health. We should ( )after school.A did our homework B do our homework C do my homework. 英语翻译（）（）what we do ,we should try our best to do it well What we should do as we already do the necessary from our In your opinion,what should we do for our aged parents?同义句What__we should do for our aged parents? _____ to improve our English?A What do you think we should do B Do you think what do we should C What do you think should we D Do you think what should we do 选哪个理由 填补句子的空缺：I think we should do something to ( )our thanks to our mothers We should do our best to protect our living environment and keep mountains green.的意思?