In this exercise, we are asked to choose the verb’s preterite or imperfect conjugation in the following sentence, taking the context into account: **( Conocí / Conocía )** al hombre que la organizó. Era un amigo de mis padres.

In this case, the appropriate verb conjugation is the **preterite (Conocí)** because we are talking about meeting someone for the first time, given that the second part of the sentence **(Era un amigo de mis padres)** lets us know that this person’s parents were the ones that had a friendship with the man.

**Conocí** al hombre que la organizó. Era un amigo de mis padres.

In this exercise, we are asked to choose the verb’s preterite or imperfect conjugation in the following sentence, taking the context into account: No **( supe / sabía )** que la policía trabajaba con la organización.

In this case, the appropriate verb conjugation is the **imperfect (sabía)** because we are talking about knowing a fact, given that the sentence expresses the fact that **the police worked with the organization**.

No **sabía** que la policía trabajaba con la organización.