◎ 题干
Tom asked his mother to _______ the radio, for it wasn't loud enough and he couldn't hear anything. 
[     ]
A. turn down        
B. turn up        
C. turn on            
D. turn to
◎ 答案
查看答案
◎ 解析
查看解析
◎ 知识点
    根据n多题专家分析,试题“Tom asked his mother to _______ the radio, for it wasn't loud enough and he couldn't hear anything.[ ]A. turn down B. turn up C. turn on D. 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。