A simple sentence has only one independent clause. A compound sentence has at least two independent clauses. A complex sentence has one independent clause and at least one dependent. A compound-complex sentence has at least two independent clauses and one dependent.
Having this in mind, 1. is a complex sentence, and 2. is also a complex sentence.
The place is the business of where her father used to work and the situation is them hiding with another family from the Nazis so they won't be sent to a concentration camp
The subject of the sentence is "girl". If you cut out the extra information, the simplest form of the sentence is "Girl tries".
Jonas thinks about his experience on the playing field after watching his father release the baby because it was another instance of the community members not truly grasping the concept of death. His friends couldn’t understand that war was a serious matter because it involved suffering and death because they couldn’t understand why those were so bad, and his father couldn’t understand that the death of the baby just because it was slightly smaller than its twin was significant because he couldn’t understand the grave (pun unintended) significance of death. Jonas, however, can, as a result of his experiences of being a Receiver.
I get distracted to the point where I forget what I’m doing