Officials said the cloths were necessary to prevent them from talking to each other.
VOA: special.2010.01.07
Otherwise,he says, there is no way to prevent them from doing this again to his children or his grandchildren.
VOA: standard.2009.09.07
The conference will discuss groups like al-Qaida and how to prevent them from obtaining nuclear materials for bombs.
VOA: standard.2010.04.06
Federal laws prevent them from smoking in public buildings.
VOA: standard.2010.02.18
The volunteers placed the plants about five centimeters into the soil to prevent rising and falling water levels from pulling them out.
VOA: special.2009.10.06
Nourizadeh also says that the students have reportedly invited their parents to participate, in order to prevent security forces from attacking them.
VOA: standard.2009.12.07
"When they bring them, we get nothing. Those who can get access prevent us from getting it.
VOA: standard.2010.02.02
"We reacted very quickly and tried to prevent these characters from boarding on to the ship, but unfortunately by the time we reacted, some of them had already succeeded and accessed the ship and had even managed to reach the cabin crew area,"
VOA: standard.2009.09.26
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