Change the verb to indicate that it is an activity that is currently in progress using the correct form of Estar in Blank 1 and correct form of action verb in Blank 2.

Yo canto en el teatro.



Change the verb to indicate that it was in progress at a time in the past using the correct form of Estar in Blank 1 and correct form of action verb in Blank 2.

Nosotros subíamos a la habitación.


please help!
thanks!