◎ 题干
"Meals on wheels"  is a free  service, ___  hot meals are delivered to elderly people who  
may not be able to move around very easily.  
[    ]
A.that        
B.which    
C.where    
D.what
◎ 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“"Meals on wheels"is a freeservice,___hot meals are delivered to elderly people whomay not be able to move around very easily.[ ]A.thatB.whichC.whereD.what…”主要考查了你对  【关系副词】【非限制性定语从句】  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。