◎ 题干
— Why does Sara know so much about Angkor Wat?  
—She ____ have been there, or...
[     ]

A. must   
B. oughtn't to
C. may   
D. can't

◎ 答案
查看答案
◎ 解析
查看解析
◎ 知识点
    根据n多题专家分析,试题“—Why does Sara know so much about Angkor Wat? —She ____ have been there, or... [ ]A. must B. oughtn't to C. may D. can't …”主要考查了你对  【情态动词】  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。