根据短文内容填空，每空不超过一个单词（12分）

Entering a sport into the Olympics can be a long process. There are many requirements to meet   53  a sport can be considered  54 the International Olympic Committee (IOC). First, a sport must have its own international committee.   55 , it must be practiced by  56 _  in at least 75 countries on at least four continents and by women in at least 40 countries on three continents. Last, a current sport must be dropped, for it becomes   57  popular and has to make way   58  new, more popular sport,  59 helps to ensure that the IOC can keep the Olympics 60 _ control.