◎ 题干
—Is everyone here today?            
—No, Tom isn't here.  He must ___________.             
[     ]
A. is ill      
B. be ill          
C. be illness    
D. healthy
◎ 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“—Is everyone here today? —No, Tom isn't here.He must ___________.[ ]A.is ill B.be illC.be illness D.healthy…”主要考查了你对  【形容词】【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。