The competitive racing of horses is one of humankind’s most ancient sports. Horse racing was an organized sport in all majored (1. CIVILISE) _________ from Central Asia to the Mediterranean and became a public obsession in the Roman Empire. The sport has (2. TRADITION) _____ been associated with kings and the (3. NOBLE) __________ . It became a (4. PROFESSION) _________ sport in the beginning of the eighteenth century. It’s the second most (5. WIDE) __________ attended spectator sport in the US, after baseball. In the UK the Jockey Club, founded in 1750, has complete (6. RESPONSIBLE) ___________ for horse racing. It’s also responsible for the regulations regarding the breeding of racehorses. Although science has been (7. ABLE) ______ to find a breeding system that guarantees the birth of a champion, it is possible to produce horses that are (8. SUCCESS) __________on the racetrack. Commercial breeding is a very (9. PROFIT) ______________ business, and racehorses are worth millions of pounds. Modern racing has (10. SURVIVAL) ________ because it’s a major venue for legalised gambling.