答案D
分析：both of them,some of them是复数,而句中谓语动词是has,every后面不能跟of．(延伸)each和every 1)结构相同点：都可以跟单数可数名词,都是第三人称单数.2)结构不同点：each后面可以跟of-短语,every后面不能跟of短语.3)结构不同：each可以单独使用,every不能单独使用.They each have a dictionary．＝They have a dictionary each．＝Each of them has a dictionary．这些句子中的each都不能用every来替换.4)用法上的区别：each强调个体,every强调整体.When the teacher came into the classroom,every student stood up．(强调整体,大家一起站起来)．Each student went to the teacher's desk to take his op her school report．(强调个体,学生是一个一个上去的)