问题补充：
The students encouraged to go on.
A. one after another
B. one another
C. the other
D. one by one
答案：
A. one after another
(答案→)B. one another
C. the other
D. one by one
解析：短语辨析。one after another一个接一个；one another彼此，互相；the other两个中的另一个；one by one逐个。句意：这些学习相互鼓励继续前进。故选B。
