◎ 题干
_______ that he isn't adequate to the present job, he devotes all his spare time to studying professional
skills.
[     ]
A. To concern  
B. Concerning
C. Having concerned  
D. Concerned
◎ 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“_______ that he isn't adequate to the present job, he devotes all his spare time to studying professionalskills. [ ]A. To concernB. ConcerningC.Havingconcer…”主要考查了你对  【过去分词】  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。