When used in the preterite tense, the verb "saber" means to find out.
In a present tense, ther verb saber would mean to know. However, It can change its meaning when conjugated in its preterite form: supe or sabía.
In this case, "supe" in English could be translated as found out into English when refering that you learnt or got specific information about a person or about something.
These should be the five parts of active, critical listening:
1. Listening for main ideas
2. Outlining main ideas
3. Looking for key words
4. Taking notes
5. Weighing the evidence
Juliet worries that the poison will kill her instead of put her to sleep, and Friar Lawrence is attempting to kill her for being sinful. She also worries that she will wake up before Romeo comes to save her, or she will die of suffocation because there is no fresh air in the tomb.
The theme of that poem is destructive potential of hatred and desire