Directions: Complete the following passage by filling in each blank with one word that best fits the context.
When kids in parts of the world want to play, they often make soccer balls out of trash tied together with string. “____ the areas used for playing fields are often rough and rocky, millions of real balls go flat (变瘪)____ 24 hours,” says Tim Jahnigen, a California businessman. Determined to solve this problem,____ created an indestructible ball called the One World Futbol.
The ball is made of ____ special material, ethylene-vinyl acetate foam. It's lightweight, it's flexible, and—____ important—it holds its shape.
The One World Futbol needs no pump ____ won't wear out, even on rough surfaces. When tested,____ withstood (经受住) being crushed by a car, and even being chewed on by a lion.
Although it costs more to produce ____ a typical soccer ball, Jahnigen estimates the One World Futbol can last 30 years. So far, it's been given to kids in 143 countries.
