第19题: [单项选择]He knew that he would be punished severely because of his serious error. Therefore he______ away the day before yesterday. A. cautioned B. fled C. chattered D. civilized 参考答案:B 答案解析:[解析] 本句说他知道自己的错误很严重,将会受到严惩,因此他前天就逃跑了。fled是flee的过去式,意为“逃逸”,符合句意。如:He was to flee his native village t