"Vice President Lyndon Johnson has left the hospital in Dallas, but we do not know to where he has proceeded.

VOA: special.2009.08.16

Rudolf found it hard to believe that there was someone in the world who did not know what violin was.

VOA: special.2010.05.08

Percival Lowell did not know that his eyes played a part in the markings he saw on Mars.

VOA: special.2010.07.11

In other words, he would know what the children are doing even when he is not watching them.

VOA: special.2009.09.06

Carbon monoxide is called the silent killer because people do not know it is in the air.

VOA: special.2010.02.02

"He is just as nice and pleasant as ever, but he still does not know enough to come in, out of the rain.

VOA: special.2009.01.03

He is just as nice and pleasant as ever, but he still does not know enough to come in out of the rain.

VOA: special.2010.03.27

They do not know why da Vinci painted it, or how it ended up in the collection of French ruler Francis the First.

VOA: special.2010.06.23

By this,I mean he did not know anything about where to find things in the city.

VOA: special.2010.02.07

In the death camps,she said, the cloth was so thick that she did not really know what she was photographing until she saw the finished pictures.

VOA: special.2009.05.17

"One soldier had been fighting in the jungles for years. And I don't know if it had affected him or not, but when the clerk handed him a tweed suit to try on he spent three hours searching through the fuzz for snipers."

VOA: special.2009.03.09

"Currently,many of the people who have not traveled, we know have been in contact with the travelers returned,"

VOA: standard.2009.05.14

At the moment we know the general location of the staff members but we are not in contact with the abductors themselves.

VOA: standard.2009.03.16

Jusu does not know the rebels who killed her daughter, but she is not afraid to speak out in front of her community.

VOA: standard.2010.06.07