Fill in the gaps with the proper grammatical form of the capitalized words.

Sport 1).............. all forms of physical activity which aim to use, maintain or improvephysical ability and provide entertainment to participants .Heart-stopping activities such as mountain biking, snowboarding and skydiving 2)……………………… as ‘extreme sports’. And they are attracting more and more people.Rock-climbing, for example, 3) ……………………… now by more than half a million Americans. Only 50,000 were doing it in 1989. One of the 4) ……………………… of all these sports is BASE jumping. First done in 1980, BASE jumping is jumping off tall buildings, towers and bridges, using a parachute. It 5) ……………………… dangerous, but of course, that’s why BASE jumpers love it. Like other extreme sports, it’s the risk of disaster that makes BASE jumping so exciting. As one BASE jumper 6) ……………………… it, ‘There aren’t many injuries in BASE jumping; you either live or die’. Some experts predict that extreme sports 7) ……………………… the major sports of the 21st century. They may become 8) ……………………… than traditional favourites like soccer and baseball. One of the 9) ……………………… is that parents start taking their little kids to extreme sports shows. And 10) ………………………, also attending them, would like to do these dangerous sports in the near future. What’s more, they are almost sure that they will be able to repeat their ‘deadly’ jump once again, like they always do in a computer game.

1) INCLUDE
2) KNOW
3) ENJOY
4) EXTREME
5) BE
6) PUT
7) BECOME
8) POPULAR
9) REASON
10) TEENAGER