Sentence 1: The boss stood in front of his employees to give a speech. 
 Sentence 3: None of the employees caught on that it was a joke 
 Sentence 4:  No one laughed at the punchline 
 Sentence 5:  The boss became embarrassed and his face turned red 
 Option 1: He began the speech with a story that turned out to be a joke. 
 Option 2: He began the speech and got nervous and ran off the stage.