At any given moment, people are doing different things. Think about where you were last night at 8:15. What were you doing? Make
up a sentence using the imperfect progressive tense to tell what you were involved in at that moment. Then think of three people you know and tell what they were doing at that same moment (it's fine to guess if you don't know for sure what they were doing). You should write and record four sentences.
Estoy bailando means I am dancing Hace tres días que bailo means I danced three days ago Hace tres días que bailé means It's been three days since i danced Acobo de bailar means I have just danced so the answer is Acobo de bailar