_ had never occurred to me that he should have some deep personed obiection A it B that C what D this 答案A为什莫
问题描述：
_ had never occurred to me that he should have some deep personed obiection A it B that C what D this 答案A为什莫
答
It 在这个地方为形式主语， 真正的主语是后面的that 从句。只有it 有这种用法
答
It occurred to me that /to do 句式 让某人突然想起