The earth is my home.we must take care of it.life today is e

The earth is our home．We must take care of it．Life today is easier than it was 1 years ago,but it has brought some new problems．One of the biggest problems is pollution．We can see it,smell it,drink it and even hear it．
Man has polluted the 2 ．the more people,the more pollution．Many years ago,the problem was not so serious because there were not so 3 people．When the land was used up or the river was not clean in a place,man went to 4 place．Now man is slowly polluting the whole world．
5 pollution is still the most serious,it’s bad for 6 things in the world．
1．A．hundred B．hundreds of C．hundred of
2．A．moon B．star C．earth
3．A．lot B．little C．many
4．A．others B．the other C．another
5．A．Air B．Water C．Noise
6．A．life B．live C．living
答案:1--6:BCCCAC

that before 保证前后对等即可

before
life today is easier than before
今天的生活比以前更容易