Must and Should ex-3 Your Email Exercise 3Use should / shouldn’t / mustn’t 1. We invite the Nortons to our party. They are nice people.2. Young children stay at home on their own.3. Before you go to the dentist’s, you brush your teeth.4. You smoke in bed!5. You shut the windows because it is raining.6. You forget her birthday again. Time’s up1 2 3 4 5 6 Basic level Intermediate level Advanced level