Dear  Mr  Earth,

            Sorry! You are very dirty. So  , people all over the world will help you to clean your body .

            We have many opinions . Can you listen to me? First , for air pollution , I think that when we do not use the car , we can stop the car . The air will be clean.

            Second, for Global Warming , I think that if the weather is not hot , we should not turn on the air-conditioner .

             Third , the Government should do something .It  can make law . We can educate the teenagers .It is very important .In the future , the teenagers will conserve the earth . I think that you will be happy.

          Last , many people are logging .Logging is very harmful to the earth .We shouls use little paper . We should recycle paper , bottle , can  etc . We should get into the habit to recycle things. We must sort the rubbish . After that we put the rubbish bins .

             I think that if you read the letter , you will be happy.