Fill in: "have to" (or its negative form) in the present simple or past simple.fill in: "have to" (or its negative form) in the present simple or past simple. 1)we come to school on saturdays and sundays. 2)a teacher correct a lot of exercise-books. 3)we missed the bus, so we take a taxi. 4)she do any homework because wasn't at school.
2)have to
3)had to
4)had to