--- Your father is very strict with you.　　----____.He never lets off a single mistake of ours.

题目

--- Your father is very strict with you.　　----____.He never lets off a single mistake of ours.
A.So he is B.So is he C.He is so D.So does he
答案是选A.解释一下为什么不选B或C,So开头不是要倒装吗?

答案

so+主语+助动词 两句的主语指同一个人,表示“正是这样”“的确如此”,主谓不倒装
so+助动词+主语 两句的主语往往不指同一个人,表示“（前者……,）后者也一样” 主谓要倒装