It ________be the vocabulary that caused you the problem in the exercise because you know a lot of w...
2022-11-27 09:31:16 30次 2013-2014学年高考二轮复习训练：专题4 情态动词与虚拟语气英语试卷（解析版） 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
It ________be the vocabulary that caused you the problem in the exercise because you know a lot of words. (2013·安徽，34)
A．may B．couldn’t
C．should D．needn’t
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