Answer:
1. c. missing tilde
2. b. needs accent
3. a. needs capitalization
4. d. misspelled word
Explanation:
1. It's missing the tilde over the "n" in años.
2. The accent in México is missing.
3. Perú is in lowercase.
4. It's "eres" not "erres".
Yo- I
Tu- you
Usted- you guys
El- him
Ella- her
Nosotros- us
Ustedes- your
Ellos- they
Ellas- they
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.
I think this means "irregular endings"
