Caution: Wet floor

She is always cautious when crossing the road.

I explored the dark cave with a flashlight.

This CD-ROM contains an entire encyclopedia of 30 volumes.

On encountering the celebrity, they asked for his autograph.

He was locked in a small cell for days.

The central park is a popular spot for picnics.

The house is equipped with central heating.

The graduation ceremony was held in the school auditorium.

I have complete certainty in my decision.