Had I known about this computer program.a huge amount of time and energy ．( )A．would have been savedB．had been savedC．will be savedD．was saved 题目和参考答案——青夏教育精英家教网——

题目内容

19．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

分析句意：如果我们早点知道这个电脑程序，大量的时间和精力就会被节省．

解答答案：A．由从句的谓语动词可知是与过去发生事实的虚拟，从句中连词if省略．与过去的虚拟，主句用would/should/could/might+have done．故选A．

点评本题是基础题，考查虚拟语气中与过去的虚拟，要熟悉与过去虚拟的句型结构．

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