Yes. The president is a person, so you will need to use conocer + a
Nosotros no podemos salir de la sala cuando la maestra está hablando.
<span>Tú oyes ___ tu mamá.
The "personal a" is necessary.<-------
The "personal a" is not necessary.
(with a)you hear your mom
(without a)you listen to your mom</span>
Answer:
is there any more information for this/?
Explanation: