In this exercise, we are asked to choose the verb’s preterite or imperfect conjugation in the following sentence, taking the context into account: Durante la manifestación, **( supe / sabía )** que un juez también luchaba contra el problema.

In this case, the appropriate verb conjugation is the **preterite (supe)** because we are talking about finding out or learning something, given that the sentence expresses the idea that the person that was participating in the protest found out that a judge was also fighting against the problem.

Durante la manifestación, **supe** que un juez también luchaba contra el problema.

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 )** mucho del problema antes de ir a la manifestación.

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 idea that the person didn’t know much about the problem before going to the protest.

No **sabía** mucho del problema antes de ir a la manifestación.