If you're asking for a translation here: Is Mr.Antonio unfriendly?<span>
</span>
Answer: Esta
Explanation: there’s not a lot of context but it makes sense because esta means “is” and the sentence would translate to “he is in the class”
Answer: b) incorrecto
Explanation:
There are no ski slopes in Buenos Aires
Answer:
Use tú!
Explanation:
Its it less formal than usted. You use usted for adults and elderly!