根据课文内容完成下列各题
What made the most recent development in the fashion world possible?
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Why do designers need to make new cloth?
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Do skiers like the new cloth for ski-wear? Why?
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Why are tights popular in the Far East and Europe?
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What does the word "it" in the sentence "the stripes on a shirt will disappear while you are wearing it” refer to?
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