"We'll leave a letter for him so he'll know where we went."

"He left a letter which said he would try to bring her back."

Your brother left a letter for you and a note.

I left a letter to the great man explaining my work.

We'll leave a letter saying we are all right, and trot off at once.

He left an open letter at the door of the church.

Once every two weeks, he would leave a letter under the door of his brother's printing shop.

I want to leave a letter with you for my father.

Maybe they left a letter or something to tell in the house.

I've left a letter saying I want you to handle everything.