Scientists at the University of Minnesota and the National Cancer Institute in the United States tested the gel on female monkeys.

VOA: special.2009.03.16

They chose the election of Barack Obama as president of the United States as the top news story of 2008.

VOA: special.2009.01.03

In 1958 she was appointed a delegate to the United Nations, expanding her job as goodwill ambassador of the United States.

VOA: special.2009.01.25

The number of Japanese students in the United States decreased for the fourth year, to just over twenty-nine thousand.

VOA: special.2009.11.26

The United States Census Bureau estimates that there are almost forty-seven million people of Hispanic heritage living in the United States.

VOA: special.2009.09.18

The president wants the United States to regain the world's highest college graduation rates, especially in math and science.

VOA: special.2009.07.30

It will work closely with international partners, including the United Nations, the United States and international financial organizations.

VOA: special.2010.04.02

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

VOA: special.2009.01.05

Since the closing of the Bank of the United States, the government had kept its money in a number of state banks.

VOA: special.2009.01.01

This process involves several tests before a person can receive a visa to stay in the United States for the training period.

VOA: special.2009.06.02

The verb "to lobby" first appeared in print in the United States in the eighteen thirties, according to a website about Washington.

VOA: special.2010.09.27

He said this would change the United States from a united,national democracy to an alliance of independent states.

VOA: special.2009.04.02

Vaudeville was the most popular form of show business in the United States in the early nineteen hundreds.

VOA: special.2009.10.11

India,China,South Korea, Japan and Canada sent the most students to the United States during the last school year.

VOA: special.2009.03.19