31.   It was difficult to determine whether the Russian leaders were entirely serious in threatening to leave or what they hoped to achieve if they stayed.

32.   Jackson looked serious in his crew cut.

33.   Kornbluth said that when the talks broke down, the U.S. side concluded that Castro was never serious in trying to normalize relations in the first place.

34.   Kornbluh said that when the talks broke down, the U.S. side concluded that Castro was never serious in trying to normalize relations in the first place.

35.   Like her daughter, her running also has become more serious in recent years, she said.

36.   Many feel that six years is a ridiculously short time in which to accomplish anything serious in public life.

37.   More serious in business terms was a marketing campaign last year which directly attacked industry leader Cisco Systems Inc. and backfired badly.

38.   Now it will become clear which of them are serious in their global ambitions.

39.   One reason for the new activism is concern over the disappearance of cultures, a problem that appears to have become more serious in the last century or two.

40.   Serious in demeanor outside the hospital, he welcomed practical jokes and tricks within its walls.