第7题: [单项选择]Lincoln, who many regard as one of our great presidents, was often ______ despite his reputation of telling good jokes. A. bright B. optimistic C. gloomy D. cheerful 参考答案:C 答案解析:[解析] 词义辨析 A.bright明亮的,欢快的,聪明的,伶俐的;B.optimistic乐观的;C.gloomy黑暗的,阴沉的,阴郁的,令人沮丧的;D.cheerful愉快的,高兴的