I ran out of gasoline, so I'm going to the nearest gas station.

I wonder where my official name stamp is?

He dropped a lit cigarette and caused a fire.

His cigarette caught fire to the gasoline, causing a serious accident.

This problem is very difficult.

His job is very difficult.

The earthquake was a terrible disaster.

I forgot my official name stamp, so I can't sign the contract.

The gas leak caught fire and caused a huge explosion.

He dropped a lit cigarette, and the dry grass caught fire.