◎ 题干
Being examined twice a year is the rule that every driver    obey in the city.
A.shall B.canC.ought toD.need
◎ 答案
查看答案
◎ 解析
查看解析
◎ 知识点
    根据n多题专家分析,试题“Being examined twice a year is the rule that every driverobey in the city.A.shall B.canC.ought toD.need…”主要考查了你对  【虚拟语气】【情态动词】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。