Match the words on the left to their meaning.
| 1. well-known |
| A. cirlces having the same centre |
| 2. ambitious |
| B. a person who judges a game of sports |
| 3. demanding |
| C. a person you play a sport with |
| 4. concentric |
| D. famous |
| 5. sportcaster |
| E. very difficult |
| 6. smooth |
| F. to make better |
| 7. improve |
| G. soft and even, not rough |
| 8. grip |
| H. to hold, to grab |
| 9. teammate |
| I. somebody who wants to succeed |
| 10. referee |
| J. a person who comments a sporting event |
