Task 1. 1. Complete with have to don't have to, must or mustn't. 1. You __ to be on time. 2. You are sick. We __ visit a doctor now. 3. In school, we __ shout, play or sing. 4.I __ catch a bus to school every day. 5. You can't turn left on Auezov Street. You __ continue on to the next traffic light.