The reason__his being late for workwas__he was caught in a traffic jam.
问题描述：
The reason__his being late for workwas__he was caught in a traffic jam.
答
whythat
有不会的可以再问我可以帮我分析一下句子结构吗？谢谢the reason...why ...that 固定用法.此句考察的就是这个短语的用法.