◎ 题干
We spoke in whispers _____ waking these sleeping dogs.
[     ]
A. afraid of
B. for fear of
C. worry about
D. concerned about
◎ 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“We spoke in whispers _____ waking these sleeping dogs. [ ]A. afraid of B. for fear of C. worry about D. concerned about …”主要考查了你对  【介词和介词短语】  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。