The sun was setting, painting the sky in brilliant shades of orange and pink. Sarah watched from her window, feeling both excitement and nervousness about her first day of school tomorrow.

Q: How did Sarah feel about her first day of school?

Casey had been anticipating this moment for months. She had read all about the various breeds of dog on the internet and considered her options. She saved up money from her allowance to pay for the adoption fee. On Saturday, her mother finally agreed to take her to the shelter to pick out a new puppy. As soon as Casey saw a beagle named Doodle, she knew he was the one for her!

What is the main idea of the passage above?