Help the new gym member understand the rules by dragging the correct phrases into the blanks.

You must not wear outdoor shoes on the basketball court, because the dirt will ruin the wood. However, you don't have to bring your own towel, because the front desk provides them for free.

You must not wear outdoor shoes on the basketball court, because the dirt will ruin the wood.

We use must not (or mustn't) for strict prohibitions—things you are absolutely not allowed to do. "Doesn't have to" is grammatically incorrect for the pronoun "you".

However, you don't have to bring your own towel, because the front desk provides them for free.

We use don't have to when there is no obligation. It means bringing a towel is not necessary, but you can if you really want to!