41.   Their efforts proved futile and the Red River still had its way, inundating Grand Forks in one of the most spectacular disasters of recent years.

42.   Their efforts proved futile.

43.   These volunteer efforts have proved successful in some places, including Montana and Colorado.

44.   Those efforts proved costly and failed to reduce crime.

45.   Yet a spotty Kansas effort proved to be more than enough to humble Houston.

46.   Perhaps their effort also proved that when good friends get together to work on something, exceptional things happen.

47.   Austrian coach Otto Baric brought on four substitute in the second half in an attempt to inject some quality into the Austrian side, but his efforts proved fruitless.

48.   But the effort proved disastrous as it lost large sums of money.

49.   But our efforts proved futile and Denmark won the match.

50.   But U.S. efforts elsewhere proved less satisfying.