-Why didn't you go to the party?

Question

-___an invitation,I would have gone to the party.A.had I received B.If I received C.If I should receive D.Were I to receive选什么？为什么？

Answer 1

选A这里是虚拟语气的强调句型过去发生的事情用虚拟语气，要使用过去完成时。强调句型，倒序，选A

Answer 2

选A,主句是would have done sth。说明是已经发生的事情。条件句用过去完成时并且倒装。