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    精英家教网 > 高中英语 > 题目详情
    I wonder whether the soldier is one of those who _______ abroad to keep peace.
    A．has been sentB．have been sentC．have sentD．has sent
    B

    试题分析：考查主谓一致：句意：我想知道是否这个士兵是要被派出国维和的士兵之一。Who引导的是定语从句，定语从句的谓语和先行词保持一致，这个定语从句的先行词是those，谓语是复数，还有soldier和send是被动关系，所以选B。
    点评：在英语中，句子的主语和谓语动词要保持数上的一致关系，叫主谓一致。这种关系通常要遵循下面三条原则：1．语法一致原则。句子的主语是单数形式，谓语动词要用单数形式；主语是复数形式，谓语动词用复数形式2．意义一致原则即谓语动词该用单数还是复数取决于主语所表达的内容在含义是单数意义还是复数意义。3．邻近原则谓语动词该用单数还是复数形式，取决于最邻近它的名词、代词或其它词的数。
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