摘要： about this computer program, a huge amount of time and energy would have been saved. A. Had I known B. If I knew C. If I should know D. Would I know
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________ about this computer program, a huge amount of time and energy would have been saved.（ ）
A. Had I known B. If I knew C. If I should know D. Would I know
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. 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
查看习题详情和答案>>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 |
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 |
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 |