题文
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 |
推荐试卷
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 |
试题篮
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