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HadIknownaboutthiscomputerprogram,ahugeamountoftimeande...

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問題詳情:

HadIknownaboutthiscomputerprogram,ahugeamountoftimeande...

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

 A. would have been saved  B. had been saved    C. must be saved       D. was saved

【回答】

A

知識點:虛擬語氣與情態動詞

題型:選擇題

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