For questions 9-16, read the text below and think of the word which best fits each gap. Use only one word in each gap. There is an example at the beginning (0). In the exam, write your answers IN CAPITAL LETTERS on tho separate answer sheet.
Many people will look back on tree-climbing 0 _____ a simple childhood pleasure and a natural test of human strength, stamina and agility. But these days, it has turned 9 a more serious activity and is 10 of the fastest-growing adventure sports in the country.
11 the invention of expensive gyms with indoor climbing walls, tree-climbing was a cheap and simple way to get a similar type of exercise. These days, if you want to 12 part in an organised tree-climbing activity, you 13 to wear a helmet and attach yourself to ropes in 14 you should lose your footing. But otherwise, tree-climbing is a very eco-friendly sport, involving minimum damage to trees or the environment.
Getting off the ground is perhaps the most challenging part of a climb. 15 that, it’s about using your legs, 16 are much stronger than your arms, to drive yourself up the tree. Reaching the top and then abseiling down again is a source of great satisfaction.