One sentence uses a hyphen incorrectly, leading to improper grammar usage.
The sentence that uses a hyphen incorrectly is: 'O From a distance, I mis-took the boy with the dark hair for my brother.'
The correct usage should be 'mistook' without a hyphen. In this sentence, the hyphen is wrongly inserted in the word 'mistook', making it incorrect.
Hyphens should be used accurately in compound adjectives before a noun to ensure clarity and proper grammar.
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