3.keep...under__control 使......在控制下

4.make way for 给......让路，让位于......

5.keep a close watch on 密切关注

原文呈现

How does a sport enter the Olympics?

Entering a sport into the Olympics can be a long process.There are many requirements that must be met① before a sport can be considered by the International Olympic Committee (IOC).First，a sport must have its own international association.Next，it must be practised by men in at least② 75 countries on at least four continents③，or practised by women in at least 40 countries and on three continents.That's not all.In order for a new sport to④ be added，another sport must be dropped⑤.This helps the IOC keep the Olympics' budget⑥ under control⑦.

Which ones are out?

Some sports that were part of the Olympics in the past have been removed⑧.These include familiar sports，such as⑨ baseball，as well as⑩ more unusual⑪ sports，such as power⑫ boating.These sports were judged to have become less popular，and had to make way for⑬ new sports which are more popular.

Which ones are in?

Some sports have been added，such as tae kwon do⑭，which was first included in the Olympics in 2000.The IOC is planning to change some of the sports in the next few years.In 2016，rugby⑮and golf⑯，which were earlier played at the Olympics and then dropped，will be included again，as they are now very popular and are played all around the world.⑰

Which ones are still trying?

Wushu is still applying to get into⑱the Olympics.The IOC has still not approved⑲ the sport due to⑳the concern about the balance of sports-there are already many other sports in the Olympics that are connected with\s\up7(21(21)fighting，such as tae kwon do