29. 다음 글의 밑줄 친 부분 중, 어법상 틀린 것은? [3점]
An interesting aspect of human psychology is that we tend to like things more and find them more ① appealing if everything about those things is not obvious the first time we experience them. This is certainly true in music. For example, we might hear a song on the radio for the first time that catches our interest and ② decide we like it. Then the next time we hear it, we hear a lyric we didn’t catch the first time, or we might notice ③ what the piano or drums are doing in the background. A special harmony ④ emerges that we missed before. We hear more and more and understand more and more with each listening. Sometimes, the longer ⑤ that takes for a work of art to reveal all of its subtleties to us, the more fond of that thing ― whether it’s music, art, dance, or architecture ― we become.
* subtleties: 중요한 세부 요소[사항]들