In October 1970, the Rail Passenger Service Act ______.

In October 1970, the Rail Passenger Service Act ______.
A、put into practice
B、was put inot practice
C、was practice
D、practised
【正确答案】：B
【题目解析】：put into practice实行，实施；落实，《铁路客运服务法》与实施之间是被动关系，要用被动结构。