It happened that he was unfit for the office.
请问老师这个句子的 that 从句是主语从句吗？这句子如何翻译？
谢谢老师。
我与黎老师的剖析稍有不同，不肯定对。提出来供网友们参考。
关于这个问题，张道真《英语常用动词使用方法词典》（P.359）上有具体的说明：
2. （happen）“恰好，碰巧”
用在由it引起的句子中，后面跟从句（it作为形式上的主语，代表后面的从句）：
It happened that the harvest was bad thatyear. 恰好那年收获不好。
It happened that he had to be present at a meeting. 恰好这天他得去参加一个会。
It happens that his sister is a close friend of mine. 碰巧他的姐姐是我的一个好朋友。
△有时前面加so，意思没太多变化。
It so happened that both of them were there. 正好他们两人都在那儿。
And it so happened that the were getting together with the PLA fighters. 恰好这个时候他们正在和解放军战士联欢。
既然it作为形式上的主语，代表后面的从句，那样后面的that从句就是真的的主语。所以，上面所有例句中的that从句与你问题中的that从句都要是主语从句而不是表语从句。
