3 Has Bill done the shopping?no, he hasn't done the shopping4 Has Laura finished her homework?Yes, she has finished her homework5 Have they bought their tickets?Yes, they have bought their tickets6 Has Bill done the ironing?No, he hasn't done the ironing7 Has Mike visited the Louvre?Yes, he has visited the Louvre8 Have you tidied your room?No, I haven't tidied my room