21.   As little as six months ago, Klaus was riding a wave of optimism about the koruna as investors said the currency was undervalued and set to strengthen.

22.   At a time when the sport should ride a wave of popularity that its stars provided, the federation has made it more difficult on those same stars.

23.   At quarterback, the Bears were forced to ride a wave of unpredictability with the backup Shane Matthews.

24.   At that time, Republicans presented a coordinated campaign, built around the Contract With America, that helped their legislative candidates ride the wave of congressional victories.

25.   At Water World near Denver, a surfer rides waves in a pool that creates them.

26.   Because Baffert is unique, personalitywise, for a horse trainer, he once rode a wave of nothing but positive publicity.

27.   Better, though, just to ride the wave of giddy overkill.

28.   Both deals ride the wave of shifting market forces that have shaken health care in the last few years.

29.   After decades of setbacks and decline, organized labor is riding a wave of new growth and resurgent political clout.

30.   After months of riding large waves breaking on the northern shores of Hawaii, surfers are migrating to southern shores for summer.