11.   In the meantime UN officials tried for a ceasefire.

12.   Government officials were not trying to subvert the tsarist system, but to modernize it.

13.   American officials are busily trying to come up with reliable estimates of how much Japanese banks are exposed to Korea.

14.   American officials have been trying to work out a U.N. resolution to toughen economic sanctions, particularly controls on financial transactions by Serbian-controlled companies.

15.   American officials tried to obtain a sample from Russia through a scientific exchange program to see whether the Russians had really created such a hybrid.

16.   Although the new university guidelines are not binding on City College until next year, college officials have been trying to improve the caliber of their student body anyway.

17.   American officials have tried to explain how such a bizarre chain of missteps could have taken place in intelligence and military organizations that pride themselves on technological prowess.

18.   American officials have tried in recent years to persuade Moscow to reduce its intelligence presence here, but without success.

19.   And Disney officials tried to dilute his reputation and downplay his contributions to its animation successes.

20.   And city officials are trying to lure the New England Patriots football team to Providence from Foxboro, Mass., with plans to build an outdoor stadium.