Sentence 1: Jason needed a new computer for school so he started shopping. 
 Sentence 3: He ordered the laptop and was awaiting its arrival 
 Sentence 4:  When the laptop finally came he was very excited and opened it 
 Sentence 5:  After he turned it on he was confident that he made the right choice 
 Given Sentence 2: As she didn't know how to download applications, she didn't use it.