[Question about sections of Writing Sample]

You could add a short description of the other sections to help situate your writing sample in the context of the entire paper. I'm not sure listing all the titles would really be all that helpful, at least not as much as actually describing the contents. You could also (if it's allowed) submit the entire paper with instructions to only read sections X-Y, which would give the adcom the chance to read more if they are interested. 

Thank you very much for your advice. I've added a short description of relationship between my entire paper and this writing sample.

[Question about sections of Writing Sample]

Hi! My writing sample was selected from several sections of my paper but I want to list titles of all sections to keep its integrity. Is it OK? Should I add annotation for these titles?

Thanks! ^ ^