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.