Test # 54
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1450 questions in 145 tests. Each test contains 10 questions.
Idiom of the Day
leave (someone or something) behind
to leave someone or something somewhere
I left my coat behind at the restaurant.
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A sock is an item of clothing worn on the feet.The foot is among the heaviest producers of sweat in the body, as it can produce over 0.25 US pints (0.12 l) of perspiration per day.Socks help to absorb this sweat and draw it to areas where air can evaporate the perspiration.In cold environments, socks decrease the risk of frostbite.