题型：选词填空（语篇） 题类：模拟题 难易度：普通
Life today has brought about new problem. One of the biggest problems of every nation is pollution. In America, there are laws the air and water clean. These are new laws and it has taken much time a polluted river or lake. Now the fish are healthy again and people can enjoy in the clean water.
When food is brought from the store to the home, it is packed in paper, glass, or plastic. Every day a newspaper comes to the home. Americans use all these materials in the garbage which was picked up by a large truck. The truck these materials to a garbage dump or a land-fill. The truck dumped the garbage into a large hole and then earth was pushed over the garbage until the hole was filled. Then, a new hole must be found.
As the years went by, the garbage increased as the population . Scientists suggested using some garbage again. They advised businessmen money by recycling or using paper, glass, and plastic again.
Now, a recycling truck comes to each home once a week up materials. American families are told their newspaper in boxes and clean all glass, and plastic. The truck takes them to factories for recycling.
Recycling is a way the environment from pollution by many materials again.
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