Sentence 1: I was chosen to give an important speech to my class. 
 Sentence 3: I practiced in front of family and friends 
 Sentence 4:  When the time came to give the speech, I forgot it 
 Sentence 5:  I made up a speech on the spot that the class enjoyed 
 Option 1: I worked very hard on writing the speech. 
 Option 2: So I sat down and wrote a speech.