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If I had known about this computer program, a huge amount of time and energy . A

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If I had known about this computer program, a huge amount of time and energy . A

If I had 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

试题答案

A

标签：programcomputerhugeofamount

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