Answer:
La música expresa nuestros sentimientos, nos mueve y organiza internamente en forma invisible.
Explanation:
<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.
Es, esta
Ser describes what she is, a secretary.
Estar tells where she is, in the office.
