Bob ran down the road.
He fell over.

Bob fell over while he ran down the road.

The thunder roared.
The hobbits hid.

The thunder roared and then the hobbits hid.

Bilbo slept in a cave.
The goblins attacked.

The goblins attacked once bilbo was asleep in the cave.

The cart came to a wheezing halt.
Gandalf strode into the hobbit hole.

Gandalf’s cart came to a wheezing halt and Infront of the hobbit hole he strode in.

Jim was interested in the idea.
He rang his friend.

Jim rang his friends since he had an idea.

Owls are nocturnal.
This means they are active at night.
They have excellent eyesight.

Owls are active at night so they have good eyesight and are called nocturnal.