◎ 题干
You have to be six years old before you _____ to go to school.
[     ]
A. will allow
B. are allowed
C. have allowed
◎ 答案
查看答案
◎ 解析
查看解析
◎ 知识点
    根据魔方格专家分析,试题“You have to be six years old before you _____ to go to school. [ ]A. will allowB. are allowed C. have allowed …”主要考查了你对  【被动语态】  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。