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一、and连接两个或两个以上单数名词或代词做主语时,谓语动词有以下两种情况:1.如果指两个或两个以上不同的人或物时,谓语动词用复数形式。例如:He and I are both students of this schoo1,2.但若指同一个人或物,或指同一概念时,谓语动词用单数形式。例如:The singer and dancer is going to give us a performance.The knife and fork is on thetable.