The president is the ex officio chairman of the board.

The expectation of life has increased significantly in recent years.

The two teams had a face-off at the beginning of the game.

Dealing with disappointment is a fact of life.

Understanding the facts of life is important for a comprehensive sex education.

The far-off mountains were covered in snow.

The Federal Bureau of Investigation is responsible for investigating federal crimes.

The hiker's field of vision expanded as he reached the top of the mountain.

The field officer led the troops into battle.

She skated a perfect figure of eight on the ice.