12. __________________, many teenagers said they like table tennis. (surprise)
13. Christopher Columbus was one of the great __________________. (explore)
14. He came first in the chess __________________. (compete)
15. He is a good pearl __________________. (dive)
16. The United Nations __________________ is an international one. (organize)
17. Before the __________________ of special breathing equipment, man couldn’t swim __________________under water. (free)
18. Jacques Cousteau was a French __________________. (invent)
19. All __________________ must play fair. (compete)
1 Surprisingly
2 explorers
3 competition
4 diver
5 organization
6 freedom
7 inventor
8 competitors