◎ 题干
.The teacher demanded that our examination paper _____handed in at once .
A be  B must be   C would be   D had to be
◎ 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“.The teacher demanded that our examination paper _____handed in at once . A be B must be C would be D had to be …”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。