Sentence 1: LEo wanted to join the marching band. 
 Sentence 3: On tryout day, he felt confident about his chances 
 Sentence 4:  He made his best effort for the band 
 Sentence 5:  And to his joy, they let him join the band! 
 Option 1: He thought he didn't have a chance so he didn't bother practicing. 
 Option 2: He practiced twirling his baton often.