Ex. 6. (A, B) Change the following into the interrogative and negative.

1. Mother has to cook dinner after work, 2. He had to sit up late with this work. 3. You will

have to get up very early to-morrow. 4. The girl had to take care of her younger sister and

brothers. 5. She will have to do it once over again. 6. These documents have to be filed.

7. They had to cover the whole distance on foot. 8. We will have to speak to him about it.​