Sentence 1 is the topic sentence. other sentences are based on 1 to support sentence 1, elaborating the topic sentence.
Answer:
The right belongs to every citizen of this democracy to vote in elections.
1. She could see in the open square before her house the tops of trees that were all aquiver with the new spring life.
2. There were patches of blue sky showing here and there through the clouds that had met and piled one above the other in the west facing her window.