Past perfect tense

Question

What is the reason for this exercise being in the past perfect tense? Could it also be in the preterite?

Accepted Answer

Hola Peter
The Indefinido (fue, trabajé, hice, compré...) is also called El Pretérito Perfecto Simple - I imagine the person in the video was using that name, as opposed to El Pretérito Perfecto Compuesto, your Present Perfect: he ido, he trabajado, has comprado...
In Kwiziq we always call these El Pretérito Indefinido and El Pretérito Perfecto, but we have an informative table with all possible tenses names both in Spain and Latin America -if you are in any doubt at some point, you can check by looking at this table. Have a look here. I hope it helps. 
Saludos
Inma

Answer

You can infer from the text that the person is talking about what they did on the same day they arrived in Argentina - So all the things they are talking about are still in that time frame i.e. today, hence the use of the present perfect.

Answer

Thanks, sorry I meant present perfect. My head is spinning with the different tenses. I was watching a youtube video of a Spanish man talking about the difference between ERA and FUE. He calls it the pretérito imperfecto and the pretérito perfecto but I'm sure he's describing the pretérito indefinido. I haven't seen FUE called the pretérito perfecto before and am now more confused than ever.