【题目】Without electricity human life ______ quite difficult today.
A. is B. will be
C. would have been D. would be
在线课程【答案】D
【解析】
试题分析：考查虚拟语气。句意：如果没有电，人类生活可能会很困难。Without electricity是一种含蓄虚拟条件，相当于if引导的条件状语从句，指现在的情况，所以主句human life __________ quite different today要用would+do的虚拟语气，故选D项。