The scientists say they do not know how the treatment would work with patients who have no sensation at all below the injury.

VOA: special.2011.06.01

Just when I tell you to go, you leave me. You know you can't leave a schoolroom without raising your hand, no matter where you're going."

VOA: special.2009.07.19

The judge said. "The emperor has hurt no one that I know of."

VOA: special.2009.12.14

But he also said there is no way to know that.

VOA: special.2009.12.15

No one in Baltimore really wants to know the visitor's identity.

VOA: special.2009.02.02

There was no sure way to know where they were.

VOA: special.2010.07.14

No one seems to know for sure.

VOA: special.2010.06.27

where are you staying? It's called the Hotel Ebbott. Oh, no, no, no.I know a much nicer hotel.

VOA: standard.other

At times of crisis when everything is collapsed you know,there is no, people don't know where to go,"

VOA: standard.2010.01.20

"And there is no way to know if the current or the wind or the waves or what is going to affect it.

VOA: standard.2010.07.05

"And I also know that kids today don't just start smoking for no reason.

VOA: standard.2009.06.22

"These crimes know no borders. In Iran, children are forced into sexual slavery, involuntary servitude, while Iranian girls are trafficked into Pakistan and numerous other countries.

VOA: standard.2009.06.16

Emmett. No, she should know. The entire familywill be implicated if this ends badly.

VOA: standard.other

"They talked about skiing, I didn't know skiing. I have no idea about winter.

VOA: standard.2010.01.22