101.  The next two years were difficult ones.

102.  The notion of reconciliation seemed to be a difficult one for Eurico Guterres, one of the most flamboyant and feared of the militia leaders.

103.  The past month, Winder said, has been a difficult one emotionally.

104.  The past year, however, has been a difficult one for Fidelity.

105.  The newcomers know that their task is a difficult one.

106.  The recovery process has been a difficult one for Belcher, who before last season never had any elbow problems his entire career.

107.  The question of just how much distance to put between a show and its movie roots is a difficult one for Broadway.

108.  The past few years have been difficult ones for the auto insurance industry in Massachusetts.

109.  The Piscataway case was a difficult one with unusual facts.

110.  The play was a difficult one to pull off and Lovullo reached with a single.