◎ 题干
With no one to        in such a frightening situation, she felt very helpless.    
[      ]
A. turn on        
B. turn off          
C. turn over          
D. turn to
◎ 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“With no one toin such a frightening situation, she felt very helpless.[ ]A. turn on B. turn offC. turn overD. turn to …”主要考查了你对  【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。