Sentence 1: Tone-deaf Melanie and her talented pal tried out for choir at school. 
 Sentence 3: The music teacher was impressed and accepted them into the choir 
 Sentence 4:  The teacher gave Melanie and her pal a duet to sing at the concert 
 Sentence 5:  Her friend got sick, so Melanie had to sing by herself 
 Option 1: Melanie only mouthed the words, while her friend sang aloud. 
 Option 2: They both panicked during the audition and performed very poorly.