Read the text below and decide which answer (A, B, C or D) best fits each gap (13-20).
\nClimbing\nThe craze of extreme sports in the 1990s brought new popularity to climbing. There are many different types of climbing, the most difficult and dangerous one being alpine climbing where climbers spend days or weeks at a time up mountains, often in (13) ...... ... conditions. This sort of climbing requires very (14) equipment and is usually only done by professional climbers with (15) of experience.
\nHowever, climbing doesn't have to involve snow and ice and dangerous conditions; it can be a very (16) hobby and something you can do for just a few hours on a Saturday afternoon. At the other end of the climbing spectrum from alpine climbing is sport climbing. This can be done indoors or outdoors on climbing walls. These walls vary from those which are completely (17) and which have been designed and built specially for the purpose to (18) occurring rock formations which have been prepared for climbing with equipment bolted in place. For beginners the easiest type of climbing is top-roping where the rope is already in (19). All you need are climbing shoes, a harness and an experienced climber or instructor to work the belay device and control the ropes. All this basic equipment can be (20) from most sports centers.
13. A. frozen\nB. ice\nC. freezing\nD. winter
14. A. specific\nB. exact\nC. precise\nD. certain
15. A. too much\nB. enough\nC. quantity\nD. plenty
16. A. enjoyable\nB. funny\nC. happy\nD. preferable
17. A. fake\nB. false\nC. artificial\nD. untrue
18. A. simply\nB. naturally\nC. only\nD. easily
19. A. location\nB. place\nC. site\nD. situation
20. A. used\nB. borrowed\nC. hired\nD. lent
