How to use "fifth" in a sentence

As morning comes on the fifth day, I feel sure I can still last a few more days

A week later, I was back in hospital in Denver for my fifth and most difficult operation

He stared down at the four uniforms but, as he did so, a fifth uniform fell as if by magic at his feet.

On Wednesday the fifth of January Mrs Dawson went to the house of her sister, the defendant, Miss Lee

At half past two in the afternoon on the fifth of January Miss Stella Lee found Mr Dawson

For five years, ever since her sixty-fifth birthday, they had been pressuring her to live with them

At the fifth house on the left, the garage door was open, and there wasn't a car inside.

Then, from a different direction, a fifth one came towards us

I will tell you later about the falling of the fifth cylinder

'The fifth cylinder!' I whispered

The fifth cylinder had not fallen on our house, but on top of the house next door

But on the fourth or fifth night I heard a sound like heavy guns.