Sentence 1: Jane was having a hard time in school. 
 Sentence 3: Jane decided she was going to cut out the partying 
 Sentence 4:  She tried her hardest to do well on this test 
 Sentence 5:  Her grade came back and it was an F 
 Option 1: She only spent her time studying, but still struggled. 
 Option 2: She was partying too much and not giving school much attention.