It________bedifficulttodiscover

发布时间:2020-07-28 01:41:24

It ________ be difficult to discover the truth about Iraq War if people refused to consider anything that might be true.A.wouldB.canC.needD.should

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A解析考查情态动词与虚拟语气。根据本句后面的refused一词的时态可知是虚拟语气,因此选择此项。
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