完形填空。 Sports in America In many parts of the world, there are four seasons: spring, summer, fall and winter. In the USA, there are only three: football, basketball and baseball. If you want to know 1 , just have a look at what people are playing. Sports are an important part of American culture. Throughout their school 2 , Americans learn to play many sports. All students take P.E. classes in school. Some try out for the school teams, 3 others join school sports leagues. For many people in the USA, sports are not just 4 . They're almost a religion (宗教). 5 sports fans buy expensive tickets to watch their favorite teams and athletes 6 in person. Other fans watch games at home, glued to their TV sets. The most devoted (投入的) sports fans 7 a game. (     )1. A. what is season (     )2. A. live (     )3. A. while (     )4. A. for funny (     )5. A. Thousands of (     )6. A. to play (     )7. A. never lose B. what season is B. life B. until B. for fun B. Thousand of B. played B. have never lost C. what season it is C. lessons C. when C. for interesting C. Thousand C. play C. never miss