21.   She had lost track of the movement ahead of her.

22.   She might under some circumstances be submissive, like these dreary girls you see padding along in the moccasin tracks of hippies.

23.   Sherman had lost track of the grid pattern altogether.

24.   The Market stretched across waste land scribbled out by tracks of vehicles.

25.   The police were busy examining the tyre tracks of the two vehicles which were involved in the accident.

26.   There are wild strawberry plants in the old wheel tracks of the logging trucks, with birch seedlings sprouting among them.

27.   They gave her copies of the papers they had written, and she kept close track of their academic record.

28.   We also saw the tracks of foxes and snow leopards.

29.   We teachers became mathematicians, seeing all these bloody points, but we lost track of the line.

30.   Were they really placed as milestones or could we be on the track of the elusive Mark stones of great antiquity?