Respuesta:1. When you visit us on Saturday, your mum can't park on our drive because Dad’s car is in the garage, or she can park opposite our house.2. We don't have to finish this geography project until next Friday, so we’ve got lots of time.3. You mustn't touch that dog – he can be dangerous if he doesn’t know you.4. We have to go through the park before 9.30 p.m. because it closes at night.5. You must bring some strong shoes because we’re going hiking across the hills on Sunday!6. I hate that moment when the teacher says: ‘You can't turn over your exam papers now.’ And then the moment when he says: ‘You must stop writing now.’