Question: must mustn't have to cwiczenia?
Answer: must. mustn't. tidy up your room., must. mustn't. smoke., must. mustn't. do your homework., must. mustn't. play with fire., must. mustn't. be home on time., must. mustn't. cheat in a test., must. mustn't. turn the music too loud., must. mustn't. help in the house.