Sentence 1: Rick had a big pet snake in his home. 
 Sentence 3: His friend watched the snake for a year while Rick worked 
 Sentence 4:  When Rick returned home, he was so happy to get his snake back 
 Sentence 5:  The snake had grown almost a foot while he was away! 
 Given Sentence 2: When he moved to a small apartment for work, he had to get rid of her.