1.   Did he give a reason for his unexplained absence?

2.   Late-night telephone calls, unexplained absences and other minor but significant changes in his usual routine.

3.   Out of action since he was suspended for the entire Del Mar meet following an unexplained absence, Valenzuela returned with one mount Thursday.

4.   Three unexplained absences result in expulsion.

5.   Yet some consumers, reeling from the still unexplained absence of Russian palladium exports, now are looking to South Africa and elsewhere for more reliable palladium supplies.

6.   He has alternated periods of strong, sometimes authoritarian, leadership with long convalescences and unexplained absences.

7.   Her body was discovered Sunday when a colleague went looking for her because of her unexplained absence.

8.   Some criticize his episodes of bizarre behavior, such as insisting on conducting a German army band and unexplained absences, which have been blamed on a drinking problem.

9.   Yeltsin has frequently shown symptoms such as poor physical appearance, slurred speech and unexplained absences that have been put down by many observers to a drinking habit.