I requested that he ---------an hour earlier .A.came B.comes C.will come D.come

问题描述:

I requested that he ---------an hour earlier .A.came B.comes C.will come D.come
选什么,然后Please tell me 为什么

D.come
request后跟宾语从句,要用虚拟语气,should+动词原形,should可省略