Carmen es una persona vieja, pero Felipe es un persona joven
These sentences can be complete in the following way:
1) Nadie.- this would mean that you do not know anyone.
2) Ningún- it makes reference to the book. you do not have a book
3) nunca. This means that you do not do that activity. you never do it
4) ni. not having one thing nor the other.
5) nada. this means that the table is empty- nothing on it.
Question 1: Uds. (empezar)
Answer 1: Ustedes empiezan.
Question 2: Ud. (mirar)
Answer 2: Usted mira.
Question 3: Ud. (escribir)
Answer 3: Usted escribe.
Question 4: Ud. (comer)
Answer 4: Usted come.
Question 5: Ud. (beber)
Answer 5: Usted bebe.
Question 6: Ud. (respirar)
Answer 6: Usted respira.
Question 7: Usted (estudiar)
Answer 7: Usted estudia.
Question 8: Usted (escuchar)
Answer 8: Usted escucha.
Question 9: Ustedes (beber)
Answer 9: Ustedes beben.
Question 10: Usted (ver)
Answer 10: Usted ve.
Question 11: Uds. (usar)
Answer 11: Ustedes usan.
Question 11: Uds. (estudiar)
Answer 12: Ustedes estudian.
Question 13: Uds. (escribir)
Answer 13: Ustedes escriben.
Question 14: Uds. (comer)
Answer 14: Ustedes comen.
Question 15: Uds. (bailar)
Answer 15: Ustedes bailan.
Answer:
yes that's the right answer