The news that he failed in the exam _____________ his unhappiness this morning.A.accounted for B.accounting for C.had accounted for D.to account for为什么选A
问题描述：
The news that he failed in the exam _____________ his unhappiness this morning.
A.accounted for B.accounting for C.had accounted for D.to account for
为什么选A
答
首先是句子缺少谓语，把B、D排除，就是A或C，主要是句子逻辑思考一下，考试在先，失败在后，伤心是因为听到没及格，C是太不对劲！
答
account for 作为句子的谓语,所以B和D不能选,否则缺少谓语动词,C选项是指这个消息对他后来还有影响,而句子中则是说“一个上午”