1. That may not / mustn't be a very good idea. I think we'll get ourselves in trouble. 2. Jane, we're in a hospital. You mustn't / couldn't use your phone in here. Can't you see the sign? 3. Alice should / needs to be there before eight 4. You should / ought tell us what to do, otherwise we won't know. 5. He must / can't be a personal trainer; he's very unfit. / a 6. You mustn't/ don't have to help me. This activity is easy. 7. That needs / must be your mum calling again; she probably wants to know where you are.
помогите пожалуйста,нужно выбрать какое слово правильное​