◎ 题干
The old man is quite weak after the accident, so he _____ .    
[     ]
A. must take care of    
B. must be take care of    
C. must look after    
D. must be looked after
◎ 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“The old man is quite weak after the accident, so he _____ .[ ]A. must take care ofB. must be take care of C. must look afterD. must be looked after…”主要考查了你对  【被动语态】【动词短语】  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。