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simply - dirt - health importance - quick - poison |
We are all destroying the earth. The seas and rivers are too (1)....................... to swim in. There is so much smoke in the air that it is (2)....................... to live in many of the world's cities. In one well-known city, for example, (3)....................... gases from cars pollute the air so much that policemen have to wear oxygen masks. We have cut down so many trees the there are now vast areas of wasteland all over the world. As a result, farmers in parts of Africa can not grow enough to eat. In certain countries in Asia there is so little rice. Moreover, we do not take enough care of the countryside. Wild animals are (4)....................... disappearing. For instance, tigers are rate in India now because we have killed too many for them to survive. However, it isn't so (5)....................... to talk about the problem. We must act now before it is too late to do anything about it. Join us now. Save the Earth. This is too (6)....................... to ignore.
1.dirty
2.unhealthy
3.poisonous
4.quickly
5.simply
6.important
