3 Has Bill done the shopping?
no, he hasn't done the shopping
4 Has Laura finished her homework?
Yes, she has finished her homework
5 Have they bought their tickets?
Yes, they have bought their tickets
6 Has Bill done the ironing?
No, he hasn't done the ironing
7 Has Mike visited the Louvre?
Yes, he has visited the Louvre
8 Have you tidied your room?
No, I haven't tidied my room