◎ 题干
Han  Wen says that listening is __________ difficult if people speak too fast.        
[     ]
A. some time                      
B. sometime        
C. sometimes                      
D. some times
◎ 答案
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◎ 解析
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◎ 知识点
    根据魔方格专家分析,试题“HanWen says that listening is __________ difficult if people speak too fast.[ ]A. some timeB. sometimeC. sometimesD. some times…”主要考查了你对  【频度副词】  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。