3 Complete the dialogue with the correct forms of have to. Zadie: Sorry, I can't see you on Saturday, Bella. Bella: Oh! Why? Zadie: I 'have to help (help) with the housework. Bella: 2 (your brother / help) too? Zadie: No, he 3 . He's too young. Bella: So, what 4 (you / do)? Zadie: Vacuum the carpets, water the plants, feed the dogs ... And I have to cook dinner. Bella: Why 5 (you / cook)? Zadie: Because mum has to work. Bella: Why 6 (she / work)? Zadie: Because she's a nurse, remember? She has to be at the hospital on Saturdays. Bella: 7 (nurses / go) to work every weekend? Zadie: No, they 8 . Only some weekends.