Don't use it when the direct object is an inanimate object.
This preposition is called the personal a because we only use it when referring to human beings! With any other direct object, it's totally superfluous. Compare these two sentences: Yo veo a una chica.
JUST GIVE ME POINTS ITS NOT HARD
1. Ms Ortega presented the principle of art
2. Arturo, presented Sergio, the friend of alma
B, it is b because Elena says it is her favorite class, therefore b is the best way of saying why it is her favorite class.
Answer:
Otello actuó en 1604 y Hamlet en 1609
Explanation:
Otello performed in 1604 and Hamlet Performed in 1609
