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　　第五段的关键句为本段的第四、五句，“The language will gradually become clearer, but this will happen at a pace that you cannot control. So sit back and enjoy.”，语言的学习将会逐渐变得更加清晰，但如果发生了你无法掌控的时候，不妨停下来，好好享受它。选项C与本段相对应，故选C。