Write the interrogative and negative forms of the following sentences: 1. i am finishing this article. 2. i prefer a glass of soda wa ter. 3. the waitress is already bringing in our tea. 4. the boy is writing a letter to his parents. 5. my cousin is leaving tomorrow.

1am I finishing this article?
I'm not finishing this article.
2What water do I prefer?
I don't prefer a glass of soda water.
3who is already bringing in our tea?
The waitress isn' t bringing in our tea?
4Is the boy writing a letter to his parents?
The boy isn't writing a letter to his parents.
5when is my cousin leaving?
our cousin isn't leaving tomorrow.