She says people might have difficulty completing an activity if they cannot expect some kind of reward in return.

VOA: special.2009.09.29

Following the Moscow bombings, some international security experts say this kind of violence cannot be permanently stopped.

VOA: special.2010.04.03

Some people are excused for health or family reasons, or because they cannot take time from work.

VOA: special.2009.08.31

They say some of the cost cuts are simply accounting tricks that cannot be repeated next year.

VOA: special.2009.07.31

"Some we cannot rule out are the constant discussions of so-called medical marijuana, marijuana legalization, and the downplaying of marijuana harms so prevalent in today's media."

VOA: special.2010.10.11

In some fields, like law enforcement, bad credit means you cannot get a job.

VOA: special.2009.04.10

She says she simply can do some things and cannot do others.

VOA: special.2009.10.30

"But the folks who have been looking for work without any luck for months and,in some cases,years, cannot wait any longer.

VOA: standard.2009.12.06

But Howells acknowledged the government cannot guarantee that some of the terror suspects picked up and held in other countries did not have their human rights abused.

VOA: standard.2009.08.10

"There are opportunities for small farmers in Africa in this market for some tropical products that cannot be grown in North America or Europe, for example products like organic cocoa or organic sugar,organic fruits and vegetables."

VOA: standard.2010.04.11

"First of all, we're asking to organize a corridor, not simply open the border, but to deploy some forces, which could lead people out who cannot get out of their houses, who are under siege, to help them cross the border, at least into Uzbekistan because it is the nearest country."

VOA: standard.2010.06.15