I knew some of it, but it has been interesting to do the background on it."

VOA: special.2010.06.28

"It kind of happens in the background, because I have an iPhone which I love.

VOA: special.2009.09.14

Critics say the national exam is biased, since it presumes a level of knowledge and cultural background that students from working class families may not have.

VOA: standard.2010.02.02

But it's not her job. "I have no chemistry background.

VOA: standard.2010.05.06