第10题: [单项选择]So far the construction of the two new bridges over the river (). A. have been completed B. has been completed C. has completed D. have completed 参考答案:B 答案解析:考查主谓一致和语态。此处谓语形式应该与主语the construction一致,故谓语应该使用单数形式,故排除A和D两项;且complete与construction为动宾关系,故使用被动语态,所以选B。