21.  For Ackerman, this was the toughest part.

22.  For Lenny Clark, the toughest part of the day was getting up on the gold medal stand.

23.  For Moore, the toughest part was waiting to learn which word he would have to spell in the first round.

24.  For most wine makers, selling is the toughest part of the job.

25.  For the administration, the toughest part has been making the case for a second deployment of U.S. troops to the Balkans in less than four years.

26.  For USC, the toughest part was losing at home.

27.  Harrelson said the toughest part is his entrance.

28.  I had to add Ethernet adapter cards to the two PCs, and this was the toughest part of the job.

29.  I had been warned that the toughest part would be staying awake.

30.  I was so pleased to have her because her role is essentially the toughest part.