Olympic Games are held every four years at a different site, in which athletes_____（1）different nations compete against each other in a_____（2）of sports. There are two types of Olympics, the Summer Olympics and the Winter Olympics.
In order to_____（3）the Olympics, a city must submit a proposal to the International Olympic Committee （IOC）. After all proposals have been_____（4）the IOC votes. If no city is successful in gaining a majority in the first vote, the city with the fewest votes is eliminated, and voting continues, with_____（5）rounds, until a majority winner is determined. Typically the Games are awarded several years in advance, _____（6）the winning city time to prepare for the Games. In selecting the_____（7）of the Olympic Games, the IOC considers a number of factors, chief among them which city has, or promises to build, the best facilities，and which organizing committee seems most likely to_____（8）the Games effectively.
The IOC also_____（9）which parts of the world have not yet hosted the Games. _____（10）, Tokyo, Japan, the host of the 1964 Summer Games, and Mexico City, Mexico, the host of the 1968 Summer Games, were chosen_____（11）to popularize the Olympic movement in Asia and in Latin America.
_____（12）the growing importance of television worldwide, the IOC in recent years has also taken into_____（13）the host city’s time zone. _____（14）the Games take place in the United States or Canada, for example, American television networks are willing to pay_____（15）higher amounts for television rights because they can broadcast popular events_____（16）, in prime viewing hours.
_____（17）the Games have been awarded, it is the responsibility of the local organizing committee to finance them. This is often done with a portion of the Olympic television_____（18）and with corporate sponsorships, ticket sales, and other smaller revenue sources. In many_____（19）there is also direct government support.
Although many cities have achieved a financial profit by hosting the Games, the Olympics can be financially _____（20） . When the revenues from the Gaines were less that expected, the city was left with large debts.