Answer:
Hicieron
Explanation:
¿Por qué hicieron los hermanos ejercicios por la noche?
According to the option provided the answer would be "¡ Ella está guapa en su traje de novia!" This would mean that she is pretty in her wedding dress.
if we pay attention to the verb form, it might be said that it agrees in gender and number with the subject pronoun "ella". It is 3rd person singular and feminine. <span />
i thinks it is escribir hope this helps!!