I believe it might be “soy”
That would be arms bravos =arms
12- está
14-están
16-están
17-estas
19-están
The answer would be la <span>presté. (I lent it)
This is because la means it. La is also feminine, and the it being referred to is the revista. Revista is feminine so you would use la.
It is also la </span><span>presté</span> because the sentence is past based. The sentence has ayer (yesterday).
