It is a pity that he could not come .这句话是主语从句吗?请分析一下句子成分, It is unusual for him to be late .这里的it是形式主语，to be late是真正的主语，麻烦分析一下句子成分，
人气：479 ℃ 时间：2020-03-28 09:45:55
解答
He could not come 这件事情是一个遗憾. It 是形式主语,真正的主语是that 引导的从句. 这句话就等于：That he could not come is a pity. It is + 形容词 （for sb.) to do sth.to do sth 是真正的主语,it 只是形式主语. 你说得很对!很棒! 祝学习愉快!
