momentarily forgetting that we were looking at a museum exhibit, we stood in front of the display for several miuntes, gazing in wonder at the magnificent creatures. 문장에서 밑줄친 구분은 무슨 구분인가요? 분사구문 문제풀이에 굵게 볼드되어서나왔는데 분사구문같지않아서요.