关于情态动词的3道英语选择题1.Loudspeakerswere
1.Loudeakers were fixed in the hall so that everyone _____ an opportunity to hear the speech. A.ought to have B. must have C.may have D.should have 答案选择C.为什么不能选D呢?谢谢 2.He spoke slowly so that everyone _____ what he said. A.ought to understand B.should und
1。D是should have done 固定用法。是本来应该做而没有做的事情 而在这个题中，may have 表示可以干什么。。。。 本题目的意思是 扬声器固定在大厅里，是让大家有机会听到讲话。 2不懂，。。 不行就凭语感 3 need 可以做情态动词和实义动词 在C中是用做实义动词 而本句有but 连接， 前后要一致