◎ 题干
—Where's Lucy?  
—I'm not sure. She ________ in the school library.      
[     ]
A. maybe          
B. must be          
C. may be        
D. will be
◎ 答案
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“—Where's Lucy?—I'm not sure. She ________ in the school library.[ ]A. maybeB. must beC. may be D. will be…”主要考查了你对  【系动词】【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。