The answer is escucha.
The subject here is Marta, and we have to conjugate the verb to match the subject, which is a 'she' and you just add 'a' to the stem.
Answer: This translates to: Who tells me a sentence with modifier, core and complements
Explanation: Use google translate.
Yo soy
Ellas son
Ud. Es
Él es
Nosotros somos
Tú eres
Ella es
Nosotros somos
Uds. son
Ellos son
Emily y yo somos
Él y ella son
Tú y yo somos
Tú y ellas son
AJ y Alex son
Rachel y Jessica son
do you want this translated in spanish?