One of the big issues to discuss is how and when to reduce deficits and economic growth measures as conditions improve.

VOA: special.2010.06.25

For instance,even native speakers are often not sure when to use "lie" and when to use "lay."

VOA: special.2010.02.11

And they should act quickly to treat asthma attacks and know when to seek medical help.

VOA: special.2009.07.28

He seemed to know the perfect time to tell a joke and when to remain silent.

VOA: special.2009.10.11

Now,the question is how and when to withdraw that support without harming a recovery, and how to avoid a repeat of the financial crisis.

VOA: special.2009.09.26

In his second term, he will have to consider how and when to withdraw heavy intervention in the financial industry and raise interest rates.

VOA: special.2009.08.28

But he looked carefully ahead, and he told Billie when to turn the boat.

VOA: special.2010.03.06

They should make sure they understand how and when to take their medicines.

VOA: special.2009.07.28

A signal from the TV tells each side of the glasses when to turn on and off, showing each eye slightly different images that create the sense of depth.

VOA: special.2010.01.26

A high burden of infectious diseases. Lack of provision of family planning allowing a women to decide when to start and end having children and how to space her children.

VOA: special.2009.10.19

Special equipment has been installed so that Olympians can rely on sight to know when to go and when to stop.

VOA: standard.2009.09.10

Meteorologists and aviation authorities are monitoring wind direction and the ash cloud's movement from Iceland to determine where and when to shut down airspace in Europe.

VOA: standard.2010.04.15

Studies have shown nurse practitioners are better at listening to patients than doctors, and they make good decisions about when to refer patients for specialized care.

VOA: standard.2010.05.14

So if we can get better at giving people triggers of when to leave early, which we will work very hard on doing, then people evacuating themselves is the safest thing to do as long as it's early enough."

VOA: standard.2009.06.24