Fill the gaps with the correct form of have to and

Fill the gaps with the correct form of have to and complete the short answers.
1. I _have to_ get up at 6.30 on school days.
2. A vet _____ learn a lot about animals.
3 My parents _____ borrow a lot of ,oney when they starred their business.
4 a) ______ football referees _____ learn a lot of rules ?
b)Yes,they ______.
5. I ____(not) study very hard when I was at school.
6 a) _____ he ______ work last night ?
b) No, he _____.
7.Rob_____(not) go to school today because it's holiday.