51.   She added she was concerned about the source of the rumors that swept trading floors Friday morning and wondered whether they were planted to destabilize trading.

52.   She added she was concerned about the source of the rumors that swept trading floors Friday morning and wondered whether it was planted to destabilize trading.

53.   Sweep floors from the corners, working your way to a clear spot in the middle.

54.   He had had been living in a single room and worked as a clerk sweeping floors in a small grocery store.