21.   The principal roles go to Jose Llana, Jesse Tyler Ferguson, Robert Montano, Sophia Salguero and Kate Suber.

22.   The singers Prospero auditions for the principal female role all challenge him on a personal level and, finally, also on a political level.

23.   The Vaccine Fund will also promote its work at the Winter Olympics with another campaign with Olympic Aid, a humanitarian organization with athletes in principal roles.

24.   Under the direction of David Warren, this new production benefits enormously from the freshness of the actors in all the principal roles.

25.   Or maybe it is too much to expect them to be concerned with broad economic management when their principal role is monetary management.

26.   Gabrielle and Hensley are in the current Broadway production but Jackman has gone on to further his film career, leaving Wilson to takeover the principal role.

27.   Interior Minister Viktor Yerin, whose special troops will now assume the principal role in Chechnya, arrived in Chechnya Tuesday to supervise the military operation.

28.   - We have endorsed a principal role for the Group of Ten, which meets tomorrow, in the cooperative monitoring of developments affecting global capital markets.

29.   The producers of the film wanted Paul Newman in the principal role, Fellini wanted Mastroianni.

30.   The significance of agriculture in improving nutrition was due to its principal role in the production of food of the desired quality and quantity.