And luckily, I got hold of it.

Luckily, too, I had a match with me.

And, if there are sharks as near land as this, luckily you happened to meet me as I was swimming for shore.

As to mistakes--.

Have you a flashlight ?" From her pocket she drew a small electric torch she had had the foresight to pick up from the hall table as she ran out.
Gavin took it and turned its rays on his wet ankles.