1.   He had been working to rid himself of cravings for three months, and now he worried that he was sliding back.

2.   The liver works to rid the body of foreign substances.

3.   Whether get-tough policies will ultimately work to rid schools of weapons remains an open question, but they seem to at least send strong messages to students.

4.   A man in protective helmet and vest demonstrated how America works to rid the world of the weapons.

5.   Maha Ghosananda has also worked to rid Cambodia of land mines planted in the continuing conflict between Communist Khmer Rouge guerrillas and government forces.