독해 문장 구조와 해석 질문드려요

다음 문장들의 구조와 해석이 궁금합니다.
838. Today responsibility is often meant to denote duty, something imposed upon one from the outside. But responsibility, in its true sense, is an entirely voluntary act: it is one;s response to the needs, expressed or unexpressed, of another human being.
844. My always keeping good hours, and giving little trouble in the family made her unwilling to part with me.
846. Ralph is in the intensive care ward of the city hospital after being struck by lightning on a camping trip.
856. Divorced, living with public assistance in an Edinburgh apartment with her infant daughter,~
858. It was in a cave Magdalena, New Mexico, where the oldest known ears of cultivated corn were discovered.