◎ 题干
—Where is our English teacher?        
—He hasn't come to school today.I think he______be ill.    
[     ]
A. has to    
B. should    
C. may    
D. can
◎ 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 is our English teacher? —He hasn't come to school today.I think he______be ill.[ ]A. has toB. shouldC. mayD. can…”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。