11.  She stopped treading water and reached for the rail.

12.  Treading the water, not knowing on whom we feed.

13.  Coughing and spluttering, she went under, treading water, and suddenly found herself supported by a pair of equally strong arms as she fought for the surface.

14.  Blushing furiously, she trod water as she ran her hands awkwardly through her wet hair.

15.  Treading water, she moved to the side of the pool and, stretching out her arms, leaned back against the smooth tiles.

16.  They were at the deep end of the pool and both trod water to keep afloat.

17.  She stopped swimming and trod water while she looked back.

18.  Treading water instead of treading soil and cutting by hand to collect bullrushes from the sides of the River Thames.

19.  Analysts were at a loss to explain why the company is merely treading water when commercial insurance prices are recovering from a long slump.

20.  And so, the two teams tread water all day.