Read the article again. Choose the best answers. 1 What does the writer say about endurance sports? a They aren't different to normal sports. b It is important to win. c They are difficult to do. 2 Why do a lot of people do endurance running? a It is easy to do compared to other sports. b It's not difficult to prepare for races. c There aren't many sports to choose from. 3 Why is the Marathon des Sables difficult? a It can get very hot during the race. b Runners need to carry a lot of food. c There's no place for runners to rest. 4 According to the text, one good thing about the run in Seoul is ... a you can see the city when you finish. b it's good for your knees. c it's popular around the world. 5 The Vertical World Circuit ... a happens every month of the year. b makes about €100,000 for charity. c is an international competition.