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One-third of the country____covered with trees and the majority of the citizens_______black people.
A is;are      B is;is     C.are;are    D.are;is
A
A解析:考查主谓一致。第一个空前的主语为“这个国家的三分之一”,作为整体,故谓语动词用单数;第二个空前的 主语为“大多数市民”,为可数名词复数,故谓语动词用复 数,即A项正确。
【规律总结】当百分数.分数后面加名词或代词时,要根据这个名词或代词来决定其谓语动词的单复数形式。如果是复数名词或代词,谓语动词用复数;如果是单数名词(或不可数名词)或代词,谓语动词用单数。如:①Fifty percent ofthe students in our school are girls.我们学校百分之五十的学生是女生。②Three—fourths of the surface of the earth issea,.地球表面的四分之三是海洋。
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