问题
选择题
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
答案：C
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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：C