Early identification of the disease may be difficult because many infected people do not show any immediate symptoms.

VOA: special.2010.01.04

Sometimes a person may be upset because he does not have something as nice as a friend has, like a fast new car.

VOA: special.2009.11.15

The discovery is exciting because it suggests that the building blocks of life may be more common in the universe than scientists had thought.

VOA: special.2009.09.30

Because of the gravity on Mars, spacesuits may have to be designed to be lighter than suits used in orbit or on the moon.

VOA: special.2011.04.06

A wife may hit the ceiling because her husband forgot their wedding anniversary.

VOA: special.2009.09.20

That may be because he died before his twentieth birthday.

VOA: special.2009.12.15

"Hepatitis B is the silent killer because most people who are chronically infected may not be aware of the infection."

VOA: standard.2010.07.26

There are fears that some low-lying communities may have to be abandoned in years to come because of flooding and erosion.

VOA: standard.2009.11.09

He says because GM crops can be designed to be resistant to insects and disease they may also be better for the environment.

VOA: standard.2009.10.21

"Now,that may be because they are sicker and they needed it, and C-Sections certainly save lives."

VOA: standard.2010.06.23

The most potent reason that Asian-Americans are increasingly joining the army may just be because they now see top-level officers who look like them.

VOA: standard.2010.07.14

The Kenya Anti-Corruption Commission estimates that at least 100-thousand children may not be able to continue their education because of the suspension of donor funds.

VOA: standard.2010.03.04

But former CIA officer Robert Grenier says the claim may well be true because of their threats of retaliation over U.S.drone aircraft attacks against the Taliban.

VOA: standard.2010.05.05

Aid groups say 23 million people face starvation in East Africa because of a relentless drought some scientists say may be a result of climate change.

VOA: standard.2009.11.04