in, dirty,animals, destroying, of
We are all slowly(1) __________ the earth. The seas and rivers are too (2)__________ to swim in. There is so much smoke in the air that it is unhealthy to live in many of the world's cities. We are cutting down too many trees. We are burning the forests. We are also destroying lots (3)__________ plants and (4)__________ . Many areas of the earth are wasteland. Farmers in many parts of the world cannot grow enough to eat. In some countries there is too little rice. The earth is (5)__________ danger. Save the Earth!
(1) destroying (2) dirty (3) of (4) animals (5) in
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