The volunteer will wait to receive e-mail messages or will enter a chat room.

And so volunteers entered a sleep laboratory and were woken up at various times of night.

Manuel and the volunteers entered the Alamo on February 23.

When the volunteers entered the house and found the artwork, they began fundraising in order to perform the renovations needed to make the building into a museum.

The Captain was waiting when the two volunteers, clad alike in dark, insulated coveralls, entered the transporter room.

In this project, volunteers enter words or simple sentences in English in response to prompts or images.

Then the young volunteers entered the store, bought a six-pack of beer and returned to their car.

The volunteers entered a carriage of a train and ordered the Specials to put their hand up.

Burr tried to recruit volunteers to enter Spanish territories.

In their experiments, 12 volunteers entered a low-pressure chamber simulating the reduced air pressure in airplane cabins.