She had to sign a pledge not to drive the car off the road.

Then the old man he signed a pledge- made his mark.

Secondary students must also sign a pledge to continue their education.

Both her opponents said they would sign such a pledge.

Those released had been asked to sign a "pledge" first.

Students sign a pledge at the start not to speak or listen to any language other than the one they are studying.

We faculty had to sign a pledge of loyalty or lose our jobs.

That evening, they each signed a pledge to resign from the party.

We make them sign a pledge to mail in the toll and we'd keep a record of it.

They join 500 other chefs around the country who have already signed such a pledge.