You use preterite to describe an action that took place and was fully done, Ex. José entro a la habitación, you can see John went into the room, he completed the action. On the other hand, imperfect tense doesn't specificate if the action was completed, Ex. José entraba a la habitación, it doesn't tell us if José fully entered the room.
"un tornado". the question is asking <span>This phenomenon rotates violently on its own axis.</span>
Answer:
¡La señora Vila es tan desagradable! Sus sobrinos no están en su casa para ayudar a la señora Vila. So option one is correct
