Watch that bench
Using active or passive depends on your focus.
Whether you use active or passive voice
depends on what you are focusing on. For example, in this short video
clip, watch the bench the woman was sitting on. What happened to it?
Start your answer with "It". Click on the photo to see the video.What happened to the bench?
It .....................
Now focus on the woman. What happened to her?
She ....................
Player will show here
In the first case, we clearly need to use the passive voice since the bench didn't do anything. Here we might say:
It was moved (or "removed") by a little girl.
In the second case when we talk about the woman, active voice in necessary:
She fell down.