If resident doctors work shorter hours, the researchers said, errors could happen when one resident takes control of a patient's care from another.

VOA: special.2010.07.13

Bohlin's work with planes showed him what could happen in a crash at high speed.

VOA: special.2010.02.09

The story also tells what could happen to a person who had an accident.

VOA: special.2009.02.11

Before this could happen, he offered to sell his country to the United States.

VOA: special.2010.02.18

And others,like the French naturalist Jean-Baptiste Lamark, had proposed ways this could happen.

VOA: special.2009.02.25

His death is the worst thing that could happen for the South."

VOA: special.2009.12.31

Before this could happen, something very unexpected took place.

VOA: special.2010.04.22

That could happen later this month. The government now thinks close to five million barrels of oil leaked into the gulf between April and the middle of July, when the spill was contained.

VOA: special.2010.08.07

"The worst thing that could happen for the president and the Democrats is for the economy to continue to deteriorate and they get blamed for it,"

VOA: standard.2009.12.15

They add the political climate is still risky and anything could happen, but for the moment there is no alternative to the agreement and the power-sharing government it created.

VOA: standard.2009.09.15

"I'm saying that this money, this opportunity that could be lost if it's not used will not happen to you again for another ten years,ten years.

VOA: special.2010.05.07

"I happen not to know the answer." Some analysts think Amiri's return could mean an exchange for Americans held in Iran.

VOA: standard.2010.07.13

"What will happen to your family's health care? This government run-plan could crush all your other choices.

VOA: standard.2009.07.31

It's the venom. You have to make a choice.You could let the change happen.

VOA: standard.other