Sentence 1: When Chuck got to school he realized he had a test. 
 Sentence 3: He tried to look over his notes during his first class 
 Sentence 4:  When he got to class the teacher was out 
 Sentence 5:  The test was postponed until the next day 
 Option 1: He didn't even have time to look over his notes. 
 Option 2: He had totally forgotten about it.