问题
选择题
He is always the first student _____ the exam paper, though he doesn't finish it.[ ]
A. hand in
B. to hand in
C. handing in
D. handed in
答案
答案：B
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He is always the first student _____ the exam paper, though he doesn't finish it.[ ]
A. hand in
B. to hand in
C. handing in
D. handed in
答案：B