5 countries in Europe
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5 sea / water animals
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5 foods that are yellow or orange
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5 cold things
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5 things in the kitchen
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5 things that can be in space (typically)
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5 summer clothes
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5 winter clothes
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5 feelings
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5 things that make you happy
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5 things you hate/ don't like
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5 animals that fly
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5 irregular verbs (1st and 2nd form)
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5 body parts
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5 words that start with T
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5 things that are fast
...
