The first blank i think is arquitecto. Which means Architect. I think that’s it because I’m the sentence it is talking about someone showing a plan to build something. Hope this helps!
the answer is A. Imperfecto progresivo.
The progressive imperfect is used to express something that was taking place in the past. It is formed using the verb to be in past (in this case: estaba) plus the verb ending in ing (ando, endo, in this case: cantando). It is mainly used for: on-going actions that were happening in the past.
Google translate is what u need
