Complete the sentences with correct forms of 'has to', 'doesn't have to', 'had to', or 'won't have to'.

1. It's Sunday tomorrow, so I **won't have to** get up early. 2. You've got lots of time. You **don't have to** hurry. 3. I broke my tooth, so I **had to** go to the dentist's yesterday. 4. Let's clean up now so we **won't have to** clean up tomorrow. 5. Lucy feels better now, so she **doesn't have to** take the medicine. 6. He **has to** shout or else she can't hear him.