Experts say heat waves often become dangerous when the nighttime temperature does not drop much from the highest daytime temperature.

VOA: special.2010.07.27

When last heard from, Amelia Earhart was seeking to become the first female pilot to fly a plane around the world.

VOA: special.2011.01.18

He had just become the first person to fly a plane alone across the Atlantic Ocean, from New York to Paris.

VOA: special.2009.06.28

They also can become weak, expel material from the stomach, and suffer pain in the head or muscles.

VOA: special.2010.04.20

But seeing Earth from space may soon become a reality for wealthy people who dream of space travel.

VOA: special.2009.12.18

Troops from the English colonies that would become the United States supported the British army in the war.

VOA: special.2009.01.05

In sixteen thirty, Puritan settlers from England established Boston in what would become the state of Massachusetts.

VOA: special.2010.04.04

She wanted to become a writer. She won two major prizes from the college for her writing.

VOA: special.2009.06.28

Arizona has become the point of entry for more than forty percent of illegal entrants from Mexico.

VOA: special.2010.07.03

The other bill changed the list of officials who could become president, if the president and vice president died or were removed from office.

VOA: special.2010.05.06

He had left his laboratory in the care of his assistant, washed the chemicals from his hands and asked a beautiful woman to become his wife.

VOA: special.2009.09.26

Music from the show has become extremely popular on CDs and on iTunes.

VOA: special.2010.01.08

Even if he was on this train." His moving to the city is an attempt to move away from the natural world and become a thing,a machine.

VOA: special.2010.12.26

In 2008,the 26-year-old from Checotah,Oklahoma became the youngest artist invited to become a member of Nashville's famous Grand Ole Opry.

VOA: standard.2009.12.15