题目内容
( ) 14. The students handed in their test papers to the teacher _______ .
A. one after the others B. one by one
C. one after one D. one after the other
B
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题目内容
( ) 14. The students handed in their test papers to the teacher _______ .
A. one after the others B. one by one
C. one after one D. one after the other
B