It has been more than two years since he has been to a hospital emergency room because of asthma.

VOA: special.2009.07.28

It has high mountains. It has valleys formed by ancient ice that cut deep into the Earth millions of years ago.

VOA: special.2009.01.07

And it has promised the Food and Drug Administration that it would only market female salmon unable to reproduce.

VOA: special.2010.10.05

It has grown into a huge event that brings together musicians, record companies,filmmakers, reporters and radio programmers from around the world.

VOA: special.2009.04.03

The movie has been a big success. And it has introduced "Star Trek" to a new generation of fans.

VOA: special.2009.06.05

The Securities and Exchange Commission says a private company must report financial information if it has five hundred shareholders or more.

VOA: special.2011.01.07

It has also sung at the White House, the Kennedy Center and at Ground Zero in New York City.

VOA: special.2009.11.13

But it has many different areas of interest to visitors who like to hike,camp,climb rocks, raft in rivers,fish and hunt.

VOA: special.2009.07.20

By the eighteenth century, a greenhorn had the meaning it has today - a person who is new in a job.

VOA: special.2010.05.23

It has been produced in all fifty American states as well as in sixty-seven countries, from Afghanistan to Zimbabwe.

VOA: special.2010.05.24

It has been said that Napoleon was successful because he knew the field position of every one of his guns.

VOA: special.2009.11.01

Now, a group of research scientists says it has found evidence of a similar event that happened about 13,000 years ago.

VOA: special.2009.01.20

It has a long name: the Agreement on Port State Measures to Prevent, Deter and Eliminate Illegal, Unreported and Unregulated Fishing.

VOA: special.2009.12.08

However,piracy had decreased in the Straits of Malacca and the eastern Indian Ocean where it has traditionally been a problem.

VOA: special.2009.05.27