"What we know from research on teen brain development, is that teens don't really have fully developed brains until they're twenty-five years old.

VOA: special.2010.07.01

"We know from our very own eyes that it's happening. We're not kind of hearing it third hand.

VOA: standard.2010.05.24

"What we know from research on teen brain development, is that teens don't really have fully developed brains until they're 25 years old."

VOA: standard.2010.06.24

She says she researches her family history because she wants to know where she came from, who her ancestors were.

VOA: special.2010.06.28

Vo Ngoc Toan from Vietnam would like to know about the TOEIC - the Test of English for International Communication.

VOA: special.2009.01.15

In fact,much of what historians know about the president's time at the house is from stories told by those soldiers.

VOA: special.2010.05.10

John Glenn, the former astronaut who was then a senator from Ohio, put it this way: "I know the Great Lakes.

VOA: special.2009.01.05

Americans know about them mainly from a history of use as pack animals in Arizona and other areas of the desert Southwest.

VOA: special.2010.02.16

A listener in China, Jack Hoo from Jiangsu province, wants to know how American college graduates find jobs.

VOA: special.2009.06.25

A question from Taiwan: Chung Li wants to know why his face turns red when he drinks alcohol.

VOA: special.2009.05.13

Kathy in Canada wrote: My daughter likes complaining about everything in the morning, and I know that this is from lack of sleep.

VOA: special.2010.10.14

We have a question from China. Feng Tianqiang says "I want to know something about John Dewey."

VOA: special.2010.01.07

A question from the West Bank: Zuheir Khlaif wants to know how American schools use educational technology.

VOA: special.2009.12.17

So I know.I saw the whole thing from the beginning, from the very day when the little boy here met with the accident."

VOA: special.2010.05.15