Had I known about this computer program, a huge amount of time and energy__A__. A. would have been s...
2022-09-21 04:23:11 151次 福建省2018-2019学年高二上学期开学考试英语试卷 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
Had I known about this computer program, a huge amount of time and energy__A__.
A. would have been saved B. had been saved
C. will be saved D. was saved
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