完形填空

 We should protect the Earth. A good environment makes people feel1. Trees are helpful. We should plant more trees. People shouldn't cut down2trees because trees help keep the air clean.

The fish in the river are dead. We should stop factories from pouring 3water into rivers. We should not drive too much. We should save4. There is not much coal or oil on Earth. We can go to school5. Plastic is bad6the Earth. We should use paper bags and glass bottles.

We can7 the world a better (更好) place to live, Do you think so?