◎ 题干
Frank is working late again. This is the first time this week he's had to study late,_____?  
[     ]
A. isn't he      
B. hasn't it    
C. hasn't he      
D. isn't it
◎ 答案
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◎ 解析
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◎ 知识点
    根据魔方格专家分析,试题“Frank is working late again. This is the first time this week he's had to study late,_____? [ ]A. isn't he B. hasn't it C. hasn't heD. isn't it…”主要考查了你对  【反意疑问句】  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。