Complete the sentence with must/ mustn’t/ should/ needn’t/ cannot. You don’t have to use all of these modals 1. You ________ use your mobile phone in the examination room. 2. You ________ listen to your parents. They are experience enough to give you good advice. 3. I have already water the trees. You ________ water them anymore. 4. We ________ wear uniforms on Mondays, Wednesdays and Fridays.