Ответы
1Hundreds of people,the police,a lot of volunteers support the runners.
2 It started in Greece more than two thousand years ago.
3 All the participants are given special computer chips,which are activated at the start of the race.
4 в тексте этого нет
Но попробую:Runners have to wear shorts,T -shirts and comfortable trainers.If it is in summer,they must put a cap on.
5 Marathon is running on a very long distance.It lasts 42 kilometres.
6 People who want to participate in marathon must train a lot.They begin their trainings in spring and run every day in order to win the marathon.
7 There are some people who don't registrate in marathon,but they want to participate anyway.They are called "bandits".
8 Yes,it can.The scenery is amazingly beautiful.The distance is usually flat and it helps runners to finish marathon successfully.