Clip/Fill question

[gracehjs]

I have a photo that is 7 by 11 and I want it to fill an 8.5 by 11 piece of paper. One side of it is mostly a background and I just wanted to extend that to the blank piece of paper. I tried several ways to cut a small piece of it out of the photo and use it as a fill for that blank bit. But whatever I try the fill uses the whole photo. Attached is the photo so you can see what I mean.