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.
Answer:
The answer is 1) Como
Explanation:
That would make the sentence:
Como esta usted, senora Mancebo?
or in english:
How are you, Ms. Mancebo?
Answer:
yes it's right
Explanation:
generlly speaking tu is used with people younger than or acquaintances/people that are close to you. While Ud. is used for the elderly and for people you show respect to
