Read the excerpt from Ernest Hemingway’s “Soldier's Home.” In the evening he practiced on his clarinet, strolled down town, read and went to bed. He was still a hero to his two young sisters. His mother would have given him breakfast in bed if he had wanted it. She often came in when he was in bed and asked him to tell her about the war, but her attention always wandered. What important detail about Krebs’s sisters and mother is revealed?