Select the underlined word that needs to be changed to make the sentence correct. Some sentences contain no error at all.

After learning that many experts believe that fear is a healthy evolutionary responses, he felt significantly less afraid of the dark. No error

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After practicing for hour on end, Sarah finally managed to perform a perfect kickflip on her skateboard. No error

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She runs very fast; sometimes it's quite uncanny. No error

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"That blond man is real suspicious," said John. No error

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Josie ran as quick as the wind; she knew that she needed to gain some distance now, if she wanted a chance to win the race. No error

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Although many think of them as incredibly fast, my cheetah runs less than half as fast as my pet falcon flies. No error

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Jon's mother did not let him organize a garage sale for the family because she did not like the idea of strangers being able to peruse their many belonging. No error

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Which of the two track stars will be quickest than the other? No error

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The replacement referee is supposedly just as good as the regular Mr. Peterson, but I don't trust them. No error

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The soldiers may well have been the bravest man in the unit, but that bravery cost him his life. No error