Решение:
- The two schools planned to play the match on a Saturday night.
- One player wanted to go out with her friends.
- One player had promised to have a meal with her aunt.
- Another said she hated playing in the dark.
- One coach suggested arranging the game on the Friday.
- The other coach refused to do it because she had another game to go to.
- One player, who didn't like arguing, said they should stop.
- (She said they should stop) disagreeing (This option is unusual and likely intended to be a gerund following 'stop', but grammatically 'to disagree' fits better with 'should stop').
- She said they should decide to cancel the game.
- But nobody seemed to be happy about that.
- Finally, the two teams agreed to meet on the Saturday.
- Because they all loved playing basketball.
Ответ: 1. to play, 2. to go, 3. to have, 4. playing, 5. arranging, 6. to do, 7. arguing, 8. disagreeing, 9. to cancel, 10. to be, 11. to meet, 12. playing.