完型填空。阅读下面短文，从短文后各题所给的四个选项(A、B、C和D)中，选出可以填入空白处的最佳选项。
Dropping into desperation completely, Jack wandered on the streets, knowing he came to the end of life. In his mid-fifties, Jack had never been 41 , experienced the joy of having children or spent holidays with his family. On this miserable rainy night, he felt as if there was 42 in the entire world who cared whether he lived or died.
Meanwhile, I was sitting in my room watching the rain 43 my window. When I heard the doorbell ring, I 44 from my chair and raced out. But my mother was already at the door. Opening it, she found herself face-to-face with a very dirty-looking man with tears streaming down his face. My mother, overcome by 45 ，invited the man inside, and he sat with my parents in our living room．
46 ，1 walked secretly downstairs so that I could get a better look. I couldn't understand what they were saying, but the sight of the man, 47 his head in his hands and crying, made my chest ache. I raced back up stairs to my room and 48 my hand into my money jar. Pulling out my only half-dollar coin, I ran back downstairs.
