are we running out of clean water?

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    www.youtube.com , level=14, 4:52 , on 2019/05/05

what really happens to the plastic you throw away

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5 tips to improve your critical thinking

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the benefits of bilingual brain

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Scientists: Human Footprint Found in Chile Is Oldest in Americas

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    www.listen-and-write.com , level=8, 1:12 , on 2019/05/04

what percentage of your brain do you use?

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5.- Kelly (Intermediate)

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what would happen if every human suddenly disappeared

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Dominic and Victoria (Intermediate)

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RC- 5 Jerry (Beginners)

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