Answer:
Usted, señor Matt, preparo el comedor.
Soy Eduardo; yo barro la sala.
These are correct.
Explanation:
Good luck!!
Part 1.
Number 1. Nosotros.
Number 2. Ellas.
Number 3. Ella.
Number 4. Tu.
You are using "SER" which is the to be. I have to go but I wish I can help with the second. Bye!