______ before we depart the day after tomorrow, we should have a wonderful dinner party.

问题描述:

______ before we depart the day after tomorrow, we should have a wonderful dinner party.
A. Had they arrived B. Would they arrive
C. Were they arrivingD. Were they to arrive
为什么不选C,而是选D

你好,这是与将来事实相反的虚拟语气,并且省略了IF,与将来事实相反的虚拟语气的构成如下:IF 从句用:1. should +do2. were to do 3.动词的过去式主句用could /should/might/would+do当IF从句的谓语是should/were 时,可...