1. A thief broke into the office where I work.
He stole lots of things.
I arrived this morning.
I called the police.
This morning, I arrived at work and saw that a thief had broken into the office and stolen lots of things, so I called the police.

2. A man was driving in the rain.
His brakes failed.
He crashed into a tree.
I was driving to work
I saw the accident.
I called an ambulance.
I was driving to work this morning when I saw an accident. A man had been driving in the rain and his brakes had failed, so he had crashed into a tree. I then called and ambulance