第1题: [单项选择]The possibility of Government's ______ taxes relies on an increased income of the country. A. lightening B. light C. lighting D. lighted 参考答案:A 答案解析:[解析] lighten:动词,意为“减轻”。本句中需要填入的是主语,所以要用动词的动名词形式,它和the possibility of Government构成动名词的复合结构。