求分析句子结构 1.I turned my head toward the elderly man in the sea

求分析句子结构
1.I turned my head toward the elderly man in the seat beside me,daring me to challenge him.
2.An ambulance sped him to the hospital while a paramedic administered CPR to keep blood and oxygen flowing.
3.Soon I was taking my pent-up anger out on Dick.(另外这里为什么是was taking不是took?)