Yes on the first I
So it's spelled pacífico
I think
You use preterite to describe an action that took place and was fully done, Ex. José entro a la habitación, you can see John went into the room, he completed the action. On the other hand, imperfect tense doesn't specificate if the action was completed, Ex. José entraba a la habitación, it doesn't tell us if José fully entered the room.
The History of Mexico (La Historia de Mexico) was Diego Rivera's most famous fresco (mural) in the National Palace, I believe. I think that work is what this is referring to.
Answer:
Fos this exercise we need to find the word that is not related to the others, acording to each context or category.
Explanation:
1. pastelería heladería panadería joyería : the word that does not belong to this group is joyería (jewelry). All the other words are related to places to get food
2. banco ahorrar quedar cobrar: the word that does not belong to this group is quedar (stay). All the other words are related to money.
3. esquina cuenta dirección cuadra: the word that does not belong to this group is cuenta (account). All the other words are related to the street.
4. doblar la esquina pagar al contado pedir un préstamo pagar a plazos : the words that do not belong to this group are: doblar la esquina, because this is an instruction to get a place and the others are related to money.
5. echar al buzón poner un sello cerrar un sobre cobrar un cheque: the words that do not belong to this group are cobrar un cheque, all the other actions are related to send letters and mails.
6. cruzar la calle ir al este ser gratis quedar enfrente de: the words that do not belong to this group are: ser gratis. All the others are locations .