优题课 - 聚名师,上好课(www.youtike.com)
  首页 / 试题 / 高中英语 / 试题详细
  • 科目:英语
  • 题型:单选题
  • 难度:中等
  • 人气:2038

  Had I known about this computer program, a huge amount of time and energy ________.

A.would have been saved B.had been saved
C.will be saved D.was saved
登录免费查看答案和解析

HadIknownaboutthiscomputerprog