Bebemos, comemos would probably be the likely answer.
26. Elena has a lot of cousins.
27. They have a pretty garden.
28. I have a very good teacher.
29. They have a dog.
30. She is 16 years old.
31. We have green eyes.
1. Correct
2. Incorrect. Yo bailé con mi novia
3. Incorrect. Samuel y Benjamín están dibujando con crayones.
4. Correct
5. Incorrect. Usted corrió rápidamente.
6. Correct
7. Correct
Hope this helped.... Sorry if not
