41.   It is a tack that has turned a fairly routine case into a testing ground for legal precedent in Massachusetts and beyond.

42.   It seemed more like a testing ground, where he could see how he measured up against the worst of the worst.

43.   It seemed the perfect testing ground for gene therapy.

44.   Its mountainous border with China, plus the fact that Lake Issyk-Kul was used as a secret testing ground for torpedoes, made it a highly sensitive area.

45.   Kansas City, of course, would likely become the most fruitful testing ground because the metropolitan economy is split by the state line.

46.   Legendary virtuosos made their way to New York, which was also the testing ground for aspiring performers.

47.   Maine and Vermont are also seen as testing grounds for legal challenges to the financing measures, which are under way in both states.

48.   Marquee sports events, though, are the ideal testing ground for this thing called convergence.

49.   Martinez said the difficult conditions have made Miami Arena something of a testing ground for manufacturers of icemaking equipment throughout North America.

50.   Now Pauken speaks of an excitement sweeping the party as it gears up to serve as a presidential testing ground.