Then there came the sound of something falling on the floor.
He'd get up from a chair, and fall on the floor.
Then something pushed me, and I fell inside on the floor.
He fell on the floor and didn't get back up.
They fell on the floor; and I picked them up.
I hear you just drop the clothes off your back and they fall on the floor.
Things are always falling on the floor, because there's not really enough space to hold them.
He did not particularly wish to fall on the floor in front of her.
The problem seemed to be not falling on the floor.
I roll over the side and fall on the floor.