◎ 题干
(2013·安徽高考)It ________ be the vocabulary that caused you the problem in the exercise because you know a lot of words.
A.mayB.couldn't
C.shouldD.needn't
◎ 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“(2013·安徽高考)It ________ be the vocabulary that caused you the problem in the exercise because you know a lot of words.A.mayB.couldn'tC.shouldD.needn't…”主要考查了你对  【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。