People recycle things because...
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People buy second-hand things because...
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People learn foreign languages because...
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People tell lies because...
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People suffer from stress because...
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People dye their hair because...
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People join gyms because...
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Women wear make-up because...
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Life without a mobile phone would be impossible these days because...
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People smoke because...
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People buy online because...
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People do voluntary work because...
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People get ill because...
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Being famous is tiring because...
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People surf the Internet because...
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