<span>Él es un compañero de clase is the right answer. The 1st sentence is ella but </span>compañero should be compañera. In the second one ella should not have an accent mark and in the last one el doesn't match with una.
La dependiente habla con los clientes en la mañana.
Explanation:
Habla is the congugation for él/ella
Everything seems to be correct. Great job!
Tacha, Max,Poncho,Cetina,Dani, Sergio, Alex Sanabria y el rector
