11.   Two long walls of matting connected by a back wall and roof of the same material constituted the dining hall.

12.   You can sit along the back wall of the courtroom to watch the proceedings.

13.   A bomb blast had weakened an area of brick on the back wall.

14.   We traced the foul smell to a pile of loathsome garbage by the back wall.

15.   He was just behind it now and could hear its heavy, throaty breathing, almost a growling sound, as it reached the back wall of the churchyard.

16.   A red glow spread out across the floor almost like blood, and washed against the back wall.

17.   The large fish tank is set into the back wall most tastefully.

18.   Well the back wall looks wet.

19.   Along the back wall is a potting bench topped by a smooth slab of granite, where a plastic potting tray keeps the work space tidy.

20.   Along the back wall, people sipped sherry and grazed the tapas bar.