Fairka
4) 3. doesn't have to wash the uniforms. 4. don't have to do the washing-up. 5. doesn't have to tidy the rooms. 6. don't have to make breakfast. 7. doesn't have to do the vacuuming. 8. don't have to empty the dishwasher. 9. doesn't have to iron the uniforms. 10. don't have to help the cooks.
6) 2. Did / have to / Yes, he did. 3. Did / have to / Yes, he did. 4. Did / have to / Yes, I did. 5. Did / have to / No, she didn't. 6. Did / have to / No, they didn't. 7. Did / have to / Yes, he did. 8. Did / have to / No, she didn't.
7) 2. didn't have to change / had to change 3. didn't have to book / had to book 4. had to cook / didn't have to cook 5. had to walk / didn't have to walk 6. had to do / didn't have to do 7. didn't have to spend / had to spend 8. had to take / had to take 9. didn't have to wear / had to wear
3. doesn't have to wash the uniforms.
4. don't have to do the washing-up.
5. doesn't have to tidy the rooms.
6. don't have to make breakfast.
7. doesn't have to do the vacuuming.
8. don't have to empty the dishwasher.
9. doesn't have to iron the uniforms.
10. don't have to help the cooks.
6)
2. Did / have to / Yes, he did.
3. Did / have to / Yes, he did.
4. Did / have to / Yes, I did.
5. Did / have to / No, she didn't.
6. Did / have to / No, they didn't.
7. Did / have to / Yes, he did.
8. Did / have to / No, she didn't.
7)
2. didn't have to change / had to change
3. didn't have to book / had to book
4. had to cook / didn't have to cook
5. had to walk / didn't have to walk
6. had to do / didn't have to do
7. didn't have to spend / had to spend
8. had to take / had to take
9. didn't have to wear / had to wear