61.   Twilite Demand authored a determined effort to gain a share of the place.

62.   Washington has asserted that Iran is in the midst of a determined effort to produce nuclear weapons.

63.   Why do I think so many will make a determined effort?

64.   With them came a determined effort to preserve their culture, their food, their music and their way of life.

65.   With all the high-tech advances in munitions and weaponry since then, there has never been a determined effort to devise more efficient techniques.

66.   Above-freezing temperatures marred the course despite determined efforts made by attendants with snow-solidifying chemicals.

67.   Because of the determined effort to follow his own path, the decision to go back to his best-known work seems all the more unusual.

68.   But neither on Tuesday night nor on Wednesday did the protesters make a determined effort to reach the square.

69.   But since losing to Hingis in the semifinals of the U.S. Open, Williams has been making a determined effort to master her serve.

70.   But in the region, no agreement on holding such a meeting was reached, despite determined efforts by U.N. Secretary-General Kofi Annan.