We should use solar energy, We should use water energy, We should use wind energy, We should use filters, , We should use alternative energy sources, We should plant a tree, We should save animals, We should use filters in factories, , We should plant a tree, We should use wind energy, We shouldn't pollute the air, We shouldn't pollute the water, , We should save the animals, We shouldn't throw rubbish around, We shouldn't pollute the water, We shouldn't pollute the air, , We should use solar energy, We should recycle materials, We should save the animals, We should pollute the air, , We should use wind energy, We shouldn't waste water, We should't use plastic bags, We shouldn't waste energy, , We should save energy, We shouldn't pollute the air, We shouldn't pollute the water, We should use plastic bags, , We should use solar energy, We should save endangered animals, We shouldn't pollute the air, We shouldn't pollute the water, , We should use wind energy, We should use solar energy, We shouldn't throw rubbish around, We shouldn't pollute the air, , We shouldn't pollute the air, We shouldn't pollute the water, We should use wind energy, We shouldn't cut the trees, , We should turn light off if we don't use it, We should use the solar energy, We should save the air, We should save the water, , We should use wind energy, We should use solar energy, We shouldn't pollute the air, We shouldn't pollute the water, , We should use solar energy, We should recycle plastic, paper and glass, We should protect the animals, We shouldn't pollute the air, , We should use wind energy, We should use bicycle to protect the nature, We should use recycled paper, We should clean up the beach, , We should use eco-friendly bags, We should clean up the beach, We should use a bicycle, We shouldn't kill wild animals, , We should use solar energy, We shouldn't pollute the air, We shouldn't throw rubbish around, We shouldn't kill elephants for ivory, Trees are very important for our world, because ......................................., They are harmful for us , They produce oxygen , They kill wild animals, People should cut down trees, .............................. has effect on human life such as rising temparatures, rising sea levels and melting glaciers., Global warming, Wind and solar energy, Air pollution, Killing wild animals, Which of the following is false?, We should use filters in factories., We should turn off the lights when we don't use them, We should plant trees, We should cut down trees, Which of the following is true?, We should kill the elephants for ivory, We should throw rubbish around, We should recycle materials, We shouldn't use eco-friendly bags.

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