Answer:
Tú
Explanation:
Tú is the only one of those four that is informal.
Tú is informal "you", usted(es) is "formal you (all)".
Ellos is "they".
¡ hola !
The answer is NO
the regulars verbs in present tense always end with an "o"
But some irregular verbs don't always end with an "o" =
SER ► soy
ESTAR ► estoy
SABER ► sé
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☺☺☺
Answer: C. Eran, terminé
