21.   In this war above all others, America needs to fight by the rules, and not appear to be changing them on a weekly basis.

22.   Instead, they fight weeds by planting winter crops such as black oats, or by spraying a biodegradable herbicide such as glyphosate.

23.   Last week Holmes said that if Foreman had not agreed to fight him by October, that he would retire for good.

24.   Like Batman, he is inspired to fight crime by the murder of his family.

25.   Meg tries fighting It by shouting out mathematical equations, by saying something, anything to break the pounding beat of It.

26.   Opponents of affirmative action, the reasoning goes, would be uncomfortable obstructing efforts to fight discrimination by better enforcement of existing laws.

27.   Rather, they fight by proxy with cutesy little fire-breathers and energy-wielders springing from tiny pocket-size orbs.

28.   That is an awkward criticism to rebut, and for his part, Foley does not try to fight it by suggesting that he is unfriendly to Japan.

29.   The agency and Gottlieb believed the United States had to fight by any means necessary.

30.   The Chechen defenders, mostly bands of angry adolescents who live at home and fight by night, control the south.