- must not - prohibition (it is not allowed)
- need not - option (it is not necessary)
Decide whether to use 'must not' or 'need not'.
- The teams
have more than 11 players on the field during a match.
- But there
even be 11 players playing for each team.
wear anything which might injure another player.
play the ball with their feet only.
- Substituted players
return to the game.
leave the game without the referee's permission.
hold an opponent.
- The referee
send a player off if he has committed foul play.
- However, if a player is sent off during the game, he
- A period
be over after exactly 45 minutes.