다음 글의 밑줄 친 부분 중 어법상 틀린 것은?Recent resear… | [법원직 9급 영어] 19년 1회차 기출문제 상세 페이지

다음 글의 밑줄 친 부분 중 어법상 틀린 것은?
Recent research reveals that some individuals are genetically ①predisposed to shyness. In other words, some people are born shy. Researchers say that between 15 and 20 percent of newborn babies show signs of shyness: they are quieter and more vigilant. Researchers have identified physiological differences between sociable and shy babies ②that show up as early as two months. In one study, two-month-olds who were later identified as shy children ③reacting with signs of stress to stimuli such as moving mobiles and tape recordings of human voices: increased heart rates, jerky movements of arms and legs, and excessive crying. Further evidence of the genetic basis of shyness is the fact that parents and grandparents of shy children more often say that they were shy as children ④than parents and grandparents of non-shy children.

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