He is talking too much about Australia as if _____there.
A.he worked
B.had gone
C.has been
D.had been
这道题答案选D,答案解释是as if/as though引起虚拟语气,与过去事实相反,请问这句话从哪能看出是过去完成时啊?这道题我选的是A,请问谁的对?