Respuestas
Respuesta:
Te pide que pongas ciertas oraciones en afirmativo, negativo o hacerlo pregunta. Por lo que veo en el ejemplo en las 3 primeras oraciones debe ser en el pasado continuo o Past Continuous
I was doing ballet
I wasn't playing football
Who was I dancing with?
We were having lunch
We weren't eating meat
What were we drinking?
He was reading a newspaper
He wasn't listening to music
Who was he waiting for?
They were visiting a museum
They weren't buying a painting
Solo tenés que recordar que para hacer el Past Continuous debes seguir esto:
Subject (que puede ser he/she/I/you/they/we/it) + ver to be (en pasado esos serían: was para he/she/it/I y were para they/we/you) + verb - ing (el verbo con la ing al final como play - playing otro ejemplo es write pero este no quedaría writeing sino writing, hay más info en google) + acá pueden ir otras cosas que son menos importantes