根据短文内容和首字母提示,在下文空格处填入适当的词使短文完整。
The environment is becoming worse and worse . There are many k_____ of pollution that I worry about. The most terrible two are w__
_ pollution and air p_
______, because people can’t live healthily with dirty water and polluted air. Animals can’t live in the world ,either. More and more people are becoming ill b _____
__ of polluted air. I think factories shouldn’t pour dirty water i_
_____ rivers directly or produce so much waste gas. We’d better go on foot or by bike i____
___ of by car. Finally, everyone must pay attention to r___
___ pollution. If everybody makes so m__
___ rubbish , one day we may live in a world which is full of rubbish. H__
frightening it will be ! We should take a____
__ to make our world cleaner and more beautiful.