The answer would have to be será. The other answers would be incorrect because serás is plural, serán would be for taking about a specific person or thing and seremos would not be valid in this context.
Answer:
Comprende
Explanation:
Ella __comprende___ (comprender) todo lo que dicen
Translation: Three diagonal lines and a straight line.
1. Ella no tiene un gato.
2. Yo nunca limpio la casa.
3. No hay nadie en la clase.
4. No hay ninguna bebida allí.
5. Yo tampoco hablo español.
Hope this helps
