And across the country, Americans waited -- worried,uncertain,afraid.

VOA: special.2011.03.17

"I do not know the volume. The volume is uncertain. There is a large uncertainty range around the 5000 barrels.

VOA: standard.2010.05.02

No wonder that with an uncertain voice coming out of the White House, Americans will have their doubts,".

VOA: standard.2009.09.22

says the whirlwind of activities leading up to the Oscars leaves him uncertain how he feels about his nomination as best actor.

VOA: standard.2010.02.18

With many facing an uncertain employment future, trust in the financial institutions and in politicians has evaporated.

VOA: standard.2009.03.28

There seems to be no going back and the way forward remains uncertain.

VOA: standard.2010.06.15

But Weissman says the survey by Green Seal and the firm EnviroMedia Social Marketing shows that consumers are uncertain how to tell whether a product helps the environment.

VOA: standard.2009.03.30

Yet traveling back to smog-bound Beijing, past industrial factories, high-rise apartment blocks under construction,shopping malls and the ever growing number of cars, the future once more looks uncertain.

VOA: standard.2010.08.03

Now,says Koldowski, the outlook is uncertain.

VOA: standard.2009.04.28

His trip comes at a critical time with the results of the country's presidential election still uncertain and worries a disputed outcome, due to allegations of widespread ballot box stuffing, could spark further civil violence.

VOA: standard.2009.09.04

That is our mission,". "And the president described it in no uncertain terms in his inaugural when he said, 'Our nation is at war against a far-reaching network of violence and hatred.' And to win this war against al-Qaida, the administration continues to be unrelenting, using every tool in its toolbox and every arrow in its quiver,"

VOA: standard.2009.08.06