You must / mustn't _____.
You must wait for your turn.
*** You must / mustn't _____. ***
You mustn't run in the library.
You must / mustn't _____.
You must sit still.
You must / mustn't _____.
You must keep quiet.
You must / mustn't _____.
You mustn't pick the flowers.
You must / mustn't _____.
You mustn't climb the trees.
*** You must / mustn't _____. ***
You must raise your hands before you speak.
You must / mustn't _____.
You mustn't spit.
You must / mustn't _____.
You must keep off the grass.
*** You must / mustn't _____. ***
You mustn't push others.
You must / mustn't _____.
You mustn't litter.
You must / mustn't _____.
You must line up.