3 Complete the dialogue with the correct forms of have to.

Dialogue

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