¡La mejor respuesta!
I was watching tv
she was running around the park 
they were driving their cars
he was eating pizza
you were doing your homework really slowly
I was swimming on the pool
we were singing louder
were you listening to music?
he wasn´t cooking the dinner
I´ wasn´t blowing the candles
was she climbing that mountain?
this house was burning

espero que te sirvan, si necesitas más dímelo. chao. 

muchísimas gracias
de nada, si necesitas algo más dímelo.