Had I known about this computer program, a large amount of time and energy_________.

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问题 Had I known about this computer program, a large amount of time and energy_________.

选项 A、would have been saved
B、had been saved
C、will be saved
D、was saved

答案A

解析 本题考查虚拟语气。当虚拟条件句中含有were,had,should时,if可以省略,从句要用倒装语序,即把were,had,should移到主语前面,句中的“Had I known”相当于“If I had known”。条件从句中的谓语用“had+过去分词”表示与过去事实相反的假设时,主句的谓语要用“would/should/could/might+have+过去分词”。句意为“如果我早点知道这个电脑程序,我就能节省大量时间和精力了”。故本题选A。
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