第4题: [单项选择](While) (remembered) mainly (for the invention) of the telephone, Alexander Graham Bell devoted his life to (help) the deaf. A. While B. remembered C. for the invention D. help 参考答案:D 答案解析:[解析] 应改为helping。本题考查的是固定词组,devote to后面接ing形式。由于发明了第一台电话而被后人缅怀的亚历山大·格雷厄姆整个一生都在帮助聋子。