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.