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答案：

Great changes have taken place here.You can see tallbuildings,big department stores and factories everywhere.Different kinds of cars and buses are running in the big streets.But with the development of the industry,we have fewer trees.Air and water pollution is becoming more and more serious.We must do something to stop pollution and make our town even more beautiful.My dreaming future home town is like a big green garden.In the spring time,my hometown will turn into a beautiful garden grooming with flowers everywhere.The street is covered up with grass.In the summer,I will come out of my apartment to walk my dog.The sky is soblue.I can see the birds flying.All the apartments are painted in green.It’s difficult to tell the different from a green apartment to a big tree.I can smell the fresh air even thought I stay inside my apartment.For sure I will love my future home town.