Correct the Errors   Two students, Pedro and Marta, talk about their classes. Each block in the dialogue below contains at least one error (spelling, agreement, puntucation, etc.). Type corrections in each blank. Use the Character Menu (tips) at bottom of screen for accents, etc. If necessary, click on [?] for tips. The Hint button is also there to help you. After making all corrections, click Check to confirm your answers.