Sentence 1: Marty always liked Christmas time because she collects angels. 
 Sentence 3: She had an appointment and could not buy it right then 
 Sentence 4:  When Marty went to the store the angel was already gone 
 Sentence 5:  To Marty's surprise her son bought the angel to give her as a gift 
 Given Sentence 2: He heard a scratching sound.