We are not sure if Muhammad means the favorite sport to watch or to play so we will include both.

VOA: special.2010.01.29

Experts are not sure whether this tribe placed bodies in caves as part of burial ceremonies or for other reasons.

VOA: special.2010.11.10

At the beginning of the talks, the United States was not sure if it wanted all or only part of the Philippines.

VOA: special.2010.07.22

The spokeswoman says if you get an e-mail you are not sure about, forward it or send a separate message to ContactETS@ets.org.

VOA: special.2010.02.18

Some of the guests were not sure what to think of Ellen and Doug's celebration -- or even how to describe it.

VOA: special.2011.05.23

"I thought that sooner or later one thing was sure to happen: The first real test once he was through school would ruin him.

VOA: special.2009.01.03

I thought that sooner or later one thing was sure to happen: The first real test once he was through school would ruin him.

VOA: special.2010.03.27

Scientists are not sure how Buruli ulcer disease spreads or even how it develops in nature.

VOA: special.2009.04.06

He wasn't sure if this wonderful smell came from the flowers or from her breath.

VOA: special.2009.05.30

Make sure the soil is not too wet or the seeds could develop poorly.

VOA: special.2009.03.24

They must make sure that nothing in the area gets moved or touched.

VOA: special.2010.05.05

So be sure to disinfect tools with alcohol or bleach after each plant.

VOA: special.2009.10.06

Another 25 percent or so are not quite sure, in my view,of the intensity of their commitment to the insurgency.

VOA: standard.2009.03.11

He says no one seems sure of how bad the situation is, or what will happen down the road.

VOA: standard.2010.05.06