The experts also say doctors need to work with pregnant women to do a better job of estimating exactly when a pregnancy began.

VOA: special.2009.10.26

That is exactly what happened. The monkeys reacted calmly when they heard the calming music.

VOA: special.2009.09.29

But they are not able to tell exactly where or when a tornado will hit.

VOA: special.2010.05.11

When they reported back three days later, General Lee knew exactly where he would attack.

VOA: special.2009.09.17

But he said Anderson must say exactly when he and his men would leave.

VOA: special.2009.08.06

Not exactly. When we taste human blood, a sort of frenzy begins, and it's almost impossible to stop.

VOA: standard.other

But he said he is ready. "I cannot tell you exactly when I will be seated, but I think it will be early next week,"

VOA: standard.2009.06.30