To Write sentences with should/shouldn't and must/mustn't and the words in brackets. 1. It's very cold outside. (coat / catch) You should wear a coat or you'll catch a cold. 2 \'m sometimes tired in my Maths class. (get / more sleep) 3 I never remember what homework I have to do. (concentrate) 4. I've got a really important exam tomorrow. (go to bed / late) 5 I usually get very hungry before lunch. (snack) 6 Olivia really wants me to help her. (call / her later)