31.   None of the three recruits had any serious academic difficulties, but none remained with the Longhorns through their entire four years of eligibility.

32.   One of first casualties was the U.S. International University, a San Diego-based college that was already in serious financial difficulty at home when it opened here.

33.   Oxley said in an interview PETN molecules could be identified without serious difficulty.

34.   Soaring inflation and mounting foreign debt have caused serious economic difficulties in Iran.

35.   Some businessmen are already complaining that the new procedures will bring serious difficulties.

36.   Surgeons familiar with the trials said that the Heartport team has had serious difficulties with the first few cases.

37.   The effort to catch bin Laden faces serious difficulties.

38.   This could cause serious difficulties.

39.   Those with mild attention-deficit disorder may also have serious social difficulties.

40.   Tonight, however, he encountered serious difficulty only once, although it was costly.