ćw.8/57 steps plus klasa 7 complete the sentences with should, shouldnt, must or musn't. 1. All the volunteers ......... put on gloves. 2.They ........ be carteful because it's easy to fall on the wet rocks. 3.They ...... pick up anything dangerous on their own. 4.The beach is quite dirty, so volunteers ....... wear their best clothes. 5.They ........ leave their water bottles on the beach. 6. They ....... take their litter home.