The dog is dirty. What does he have to do?
He has to take a bath.
You have a big test tomorrow. What do you have to do?
You have to study.
You are tired. What do you have to do?
I have to sleep.
You have Covid 19. What do you have to do?
You have to stay home.
He is late. What does he have to do?
He has to ride faster.
You want to go to Taiwan. What do you have to do?
You have to take a plane/boat.
She has toothache. What does she have to do?
She has to see a dentist.