Bob ran down the road before
He fell over.

The thunder roared while
the hobbits hid.

Bilbo slept in a cave although
the goblins attacked.

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

Jim was interested in the idea when
he rang his friend.

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