Respuesta :
I can just see me there on the balcony, all lovely in my long, flowing gown, wistfully speaking those lines, "Oh Romeo, Romeo, wherefore art thou, Romeo?"
The sentence that shows that Gabriela has self-confidence is the following:
"I'd be a good Juliet, too, and I'd be the sun, just like Romeo says, glowing, shining—his light in the dark".
In this sentence, it is clearly stated that Gabriela has self-confidence because she is expressing her inner belief in herself. She firmly expresses that she "would be a good Juliet" and that she "would be the sun...glowing, shining". She is full of confidence about being good for the part of Juliet.