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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:考查主謂一致。第一個空前的主語為“這個國家的三分之一”,作為整體,故謂語動詞用單數;第二個空前的 主語為“大多數市民”,為可數名詞復數,故謂語動詞用復 數,即A項正確。
【規(guī)律總結】當百分數.分數后面加名詞或代詞時,要根據這個名詞或代詞來決定其謂語動詞的單復數形式。如果是復數名詞或代詞,謂語動詞用復數;如果是單數名詞(或不可數名詞)或代詞,謂語動詞用單數。如:①Fifty percent ofthe students in our school are girls.我們學校百分之五十的學生是女生。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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