San diego Union Building en Old Town fue encontrado por Gaspar de Portola en 1769.
Answer:
I think it is necessary.
Explanation:
Without the "a" it's like you're asking a question, when you add the "personal a" you're saying it as in you did that!
1. el documental es informativo - it means that a documentary is informative
2. el programa repite - you need to use this form of the verb because it is the third person singular
