单选题 Leaving for work in plenty of time to catch the train will ______ worry about being late.
A. rule off B. prevent C. avoid D. obviate

【正确答案】 D

【答案解析】[解析] 本句空格处意为“消除对迟到的担忧”。obviate意为“消除、排除(危险、障碍、担忧等)”；rule off意为“画线隔开”；prevent意为“防止，预防”；avoid意为“避免”。四个选项中只有D项符合句意。