第10题: [单项选择]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 参考答案:D 答案解析:[解析] D选项obviate的意思是“消除、排除(危险、障碍、担忧等)”;A选项rule off的意思是“画线隔开”;B选项prevent的意思是“防止,预防”;C选项avoid的意思是“避免”。四