They believe the simian immunodeficiency virus,S.I.V., probably crossed from chimpanzees to humans in the last one hundred years.

VOA: special.2009.09.08

In a gesture full of symbolism, Chancellor Angela Merkel crossed from one side to other, accompanied by VIP guests, former Soviet President Mikhail Gorbachev, former Polish labor leader and president Lech Walesa, and civil rights activists of 20 years ago.

VOA: standard.2009.11.09

As the train crossed a river I took out of my pocket the object that had dropped from Caswell's dead hand.

VOA: special.2010.06.12

At the same time, hundreds of pro-slavery men crossed the border from Missouri.

VOA: special.2009.05.07

On election day, hundreds of men from Missouri crossed the border into Kansas.

VOA: special.2009.04.30

They crossed the Potomac River from Maryland into Virginia.

VOA: special.2010.01.07

Once again,men from Missouri crossed the border into Kansas.

VOA: special.2009.04.30

Tensions remained high along Israel's border with Gaza, where the Israeli military says gunfire erupted after militants crossed the border from Gaza into Israel and opened fire at soldiers.

VOA: standard.2010.06.01

A woman named Liseth, who has just arrived at the house carrying her two-year-old daughter, is one of a group of three women who say they crossed Guatemala from their native Honduras.

VOA: standard.2009.09.01