분사구문을 부사절로 바꾸는 법 질문드려요

지문에서 분사구문을 부사절로 바꾸라고 하는데 어디가 분사구문인지 모르겠어요 ㅠㅠ
Lions specialize in cooperative hunting.
But who knew that they were smart enough to plan their strategy ahead of time?
Dr. Donald Griffin, who studies animals in the wild, watched four female lions go after a wildebeest,
To distract the herd, two of the lions deliberately placed themselves what the wildebeests could see them.
The third lion crawled through the grass untill she was midway between the lions and herd and crouched, unseen.
The fourth lion charged from behind the herd, having the wildebeests run toward the hidden lion, who burst from cover and killed one of the wildebeests.
All four lions shared in the kill!
문법이 잘못된 부분도 있으면 알려주세요 ㅎ