It is absolutely essential that all facts______(examine)first．

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问题 It is absolutely essential that all facts______(examine)first．

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答案(should)be examined

解析在“It is(was)+形容词(或过去分词)+that….“结构中，主语从句的谓语要用“should+动词原形“表虚拟语气。由于“all acts”与“examine”是被动关系，所以“examine”用被动式。

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大学英语三级B级

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