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Unit 9: Interesting facts about sea creatures
Exercise
Unit 9: Answer Keys
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Unit 10: The history of sports
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Unit 10: Answer Keys
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Unit 11: How video games affect the brain
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Unit 11: Answer Keys
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Unit 12: The benefits of a plant-based diet
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Unit 13: Unusual jobs people have around the world
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Unit 14: The science behind extreme weather events
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Unit 15: The role of art in preserving culture and heritage
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Unit 15: Answer Keys
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Unit 16: Popular tourist destinations for families with young children
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Unit 16: Answer Keys
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