Use the words in the list to complete the sentences.

1. He loves sandboarding because he can do it anywhere there is sand. 2. Underwater hockey is played at the bottom of the pool. 3. In ice climbing, you swing an axe into ice and pull yourself. 4. Zorbing involves rolling down a steep hill strapped inside a ball. 5. He has just received his black belt in karate. 6. John goes jogging every morning in the park.