Task 2. Read and write. Use must or mustn't. ride your bike listen to loud music eat lots of sweets take some medicine go on the roundabout stay in bed 1 I feel dizzy. You mustn't go on the roundabout. 2 I've got a sore throat. 3 I've got flu. 4 I feel sick. 5 I've got a broken leg. 6 I've got earache.