It seems that you have missed the necessary options for us to answer this question, so I had to look for it. Anyway, based on the given lines above, the literary device that Sophocles uses in these lines to keep the audience interested is DRAMATIC IRONY. Hope this helps.
Answer:
the 1st error is Me too! and the second is show or visa versa
megan and Tatiana get into a fight about who had the idea for the strike in the fire place
