【题目】Had I made good use of this software, a huge amount of time and energy _________.
A. would have been saved B. had been saved
C. will be saved D. was saved
在线课程【答案】A
【解析】
试题分析：句意：如果我过去充分利用这个软件，大量的时间和精力就会被节省下来。此处是if引导的条件句的虚拟语气，省略if把had提前表示与过去事实相反，主句用would ∕should∕ could have+过去分词，此处是被动结构，故选A.