Choose the correct form to complete the sentences and questions.
1 My brother have to / has to take the rubbish out every week.
2 Does Mum have to / has to leave early?
3 I haven’t to / don’t have to do the project – it’s optional.
4 He not have to / doesn’t have to hand in his homework today.
5 'Do we have to lay the table?'  'Yes, you have / do.'