Sentence 1: My physics teacher told us about the upcoming test. 
 Sentence 3: I just tried to memorize the homework instead of studying 
 Sentence 4:  I ended up failing the exam 
 Sentence 5:  As a result, this was a learning lesson and I changed my habits 
 Option 1: He said that the questions are similar to the homework. 
 Option 2: I memorized everything and aced the exam and didn't learn a thing.