一道专四真题,希望大虾解答!（ ） I'll marry him all the same.A.was he rich

一道专四真题,希望大虾解答!
（ ） I'll marry him all the same.
A.was he rich or poor
B.whether rich or poor
C.were he rich or poor
D.be he rich or poor
答案是选D,参考书的答案就说虚拟语气是这样的.我想详细知道一下这种结构的虚拟语气,最好非常详细啦,谢谢.因为没有分数不能悬赏,不好意思.
( ), if I had arrived yesterday without letting you know.
A.would you be surprised
B.were you surprised
C.had you been surprised
D.would you have been surprised
希望各位与这道题对比一下,我实在分不清怎么选啊,虚拟语气头痛啊.这题是选A的