3. Write the interrogative and negative forms of the following sentences.
1. Ann is finishing her cornflakes.
2. Mrs. Smith is passing plate to her husband.
3. The children are taking over their cornflakes.
4. I am finishing this article.
5. I prefer a glass of soda-water.
6. My cousin is leaving tomorrow.
7. The children are working in the garden.
8. The girl is going to write a letter.