Mister Hawass says that scientists have not yet been able to tell what caused the brown spots.

VOA: special.2009.12.15

Yet,his recordings and films have been,and are still, enjoyed by people all over the world.

VOA: special.2010.04.04

Officials estimate that more than of 3,000 people has been infected, although authorities do not yet have an exact figure.

VOA: standard.2009.07.24

Not all the bodies have yet been recovered. Some are still missing and hundreds of people have been left homeless.

VOA: standard.2009.10.10

"The reason those vents have not been closed yet are two reasons." "To prohibit the buildup of hydrates and something called chatter.

VOA: standard.2010.06.08

Authorities are trying to determine if the men are linked to recent attacks in the region, although no charges have yet been filed.

VOA: standard.2009.12.11

The two generals are expected to take up their posts in the coming weeks, although they have not yet been confirmed by the U.S.Senate.

VOA: standard.2009.06.08

Negotiators for Mr.Zelaya and Mr.Micheletti have been meeting for more than two weeks, but have yet to reach a deal about who will preside over the upcoming vote.

VOA: standard.2009.10.23

The visit by Secretary of State Hillary Clinton is yet another sign of President Barack Obama's urgent drive to restart the talks, which have been stalled since December.

VOA: standard.2009.10.30

Results from Baghdad, a pivotal area, have not yet been announced.

VOA: standard.2010.03.12

"They're not quite there yet. There have been some serious efforts to deal with a combination of long-standing problems in the auto industry and the current crisis which has seen the market for new cars drop from 14 million [vehicles in annual sales to nine million.

VOA: standard.2009.03.30