取消
参考答案I
解析:本题意为“英国的公共基础设施无法跟上城市扩张的进度，上下班时间大大延长”。题干中keep pace with是关键词，可以将答案定位在I段的最后一句public infrastructure did not keep pace with urban sprawl， causing massive congestion problems which now make commuting times far higher．本题句子中travel times to work increase是对原文commuting times far higher的同义转述。