【题目】School was dismissed an hour earlier __________ the bad weather yesterday.
A.on account ofB.in case ofC.in contrast ofD.on the basis of
在线课程【答案】A
【解析】
考查介词短语辨析。句意：由于昨天天气不好，学校提前一小时放学。A. on account of由于；B. in case of万一，假设；C. in contrast of 与此相反，比较起来；D. on the basis of根据，基于……。分析句子可知，此处表示原因，故选A。