The other two demonstrate the use of drugs on federal property.

Case studies demonstrate effective use by both managers and workers.

Her husband died in an accident while he was demonstrating the use of weapons to his troops.

But he was just demonstrating the use of the wooden tools.

Rogers demonstrates the use of a cane and shows many ways to write his name.

This is the same class where last year they used a banana to demonstrate the use of condoms.

He demonstrated the use of four cannons and 50 Western guns.

And he underscored his commentary by demonstrating the use of a door.

This event has been called Bell's "greatest success", as it demonstrated the first successful use of the telephone.

To demonstrate the use of the personal form, the reply is: