11.   The people who are going to enter the labor force for the next twenty years have already been born.

12.   The region has been fiercely contested by guerrillas and the paramilitary forces for the past few years.

13.   The trade embargo has been in force for a year.

14.   These Christians were slow to gather forces for a Reconquista.

15.   They are meant to plug the gaps in the trade embargo that has been in force for almost a year.

16.   This approach stems from a strongly held belief that voluntary action represents a major force for positive environmental change.

17.   Those who believe that the family is a major force for good in our society should strive to move against this social trend.

18.   We single out technology and the structure of international finance as the primary driving forces for change.

19.   We share his view that business can be a positive force for change.