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.
Hire some one who knows about the stock market.
1. Yo estoy
2. Pablo pide
3. Nosotros ponemos
4. Andres y Ana van a ir
5. Tu vendrás
6. Vosotros sábenos
7. Lilia duerme
8. Ulises prefiere
9. Tu quieres
10. Tu y yo damos
Answer:
B a brochure on the chichen itza