Dialogue on the phone - contrast present simple and present continuous

Gap-fill exercise created by Nati Castillo for 2 ESO

Fill in all the gaps, then press "Check" to check your answers. Use the "Hint" button to get a free letter. You can also click on the "[?]" button to get a clue.
Mark (answering his mobile phone): Hello?
Ellen:, Mark. Where are you?
Mark: I'm Peter's house.
Ellen: Why? What you doing there?
Mark: I'm the football match Real Madrid versus Barça. Why? the problem?
Ellen: It's Tuesday. We have a revision class of Mathematics .
Mark: sorry, today there's an important match.
Ellen: OK. you tomorrow.