The pollution in our country is very serious, which is harmful to our health. If  we don’t take     
to protect the environment, the earth will be destroyed. The earth is our home. No earth, no people! So we should think of some good    to solve the environmental problems.
　　   is one of the problems. But some rubbish can be    . So we should      the rubbish according to the materials instead of throwing them here and there. We should also    the waste. For example, we can use      sides of the paper or we can bring a basket when going to the supermarket. Waste water shouldn’t be     into rivers and lakes directly(直接地). Dirty water may     some diseases(疾病).
In a word,    is supposed to take an action at once. It is our duty to protect the environment and make our world more and more beautiful.
A. hair    B. measures C. sky
A. purpose B. results  C. ways
A. Rubbish B. Air  C. Water
A. stored B. recycled C. wasted
A. sell    B. rise C. sort
A. reduce  B. make C. stop
A. both    B. neither  C. none
A. poured  B. discovered   C. rained
A. shut    B. cause    C. prevent
A. no one B. someone  C. everyone