◎ 题干
With so many forms ___, many students feel at a loss before the 2012 college entrance exam.
[     ]
A. filling in      
B. filled in        
C. to fill in      
D. to be filled in
◎ 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 so many forms ___, many students feel at a loss before the 2012 college entrance exam.[ ] A. filling inB. filled inC. to fill in D. to be filled in …”主要考查了你对  【不定式】  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。