Write must or mustn't : RULES at the SWIMMING POOL

Gap-fill exercise

Fill in all the gaps, then press "Check" to check your answers. Use the "Hint" button to get a free letter if an answer is giving you trouble. Note that you will lose points if you ask for hints or clues!
1. You run.
2. You have a shower.
3. You eat.
4. You smoke.
5. You wear a swimming hat.