The students work with activities on their computer screen and wear a headset and microphone to talk to their tutor.

VOA: special.2011.04.21

Cholinesterase inhibitors may work by protecting a chemical messenger needed for brain activities.

VOA: special.2009.09.15

The young people here are hard at play, and the Muslim elders are hard at work trying to keep them engaged in positive activities.

VOA: standard.2009.12.20

Reif says this improved cooperation is expected to help the U.S.and Russia fight nuclear terrorism and work toward tougher sanctions on Iran for its nuclear activities.

VOA: standard.2010.04.04

Kenyan national Wangari Maathai won the 2004 Nobel Peace Prize for her work in the Green Belt Movement, an organization that engages in tree-planting activities and environment conservation.

VOA: standard.2010.02.24

The study suggests that the Obama administration work with Middle Eastern allies to repeal laws that restrict citizen freedoms, hinder political activities or suppress freedom of expression and assembly.

VOA: standard.2010.05.19