[填空题]Americans are getting ready for the biggest soccer event in the world. For the first time the world cup soccer (36) will be held in the United States. While millions play the game around the world, soccer or football has only recently become popular here. It is only in the last 30 years that large (37) of young Americans became (38) in soccer. Now it is the fastest (39) sport in the country. A recent study found that almost 18 million (40) boys and girls play soccer in the United States. The study also found that soccer is beginning to (41) more traditional games like American football as the most popular sport among students. And so, when the world cup begins next week, more than one million Americans are (42) to go and see the teams play. Organizers say this year’s world cup will be the biggest ever. All the (43) at most of the 52 games have already been sold. (44) But how did th