11.  He was the only one to keep moving at the same speed.

12.  He was the only one who matched the colourfully embroidered wall-hangings and solid oak furniture of the private solar.

13.  I had forty cousins, and I was the only one of us who went to college.

14.  I think they will find that most authorities will agree that it has proved a major obstacle but by no means the only one.

15.  I was not the only one enjoying the apples, nor the new dense growth of trees.

16.  I was the only one who disagreed.

17.  In manufacturing, those small businesses with four or fewer employees were the only ones to create net new jobs.

18.  In our view, he was the only one who could possibly bring about municipal government reform and foster economic growth.

19.  In the Middle Ages there were five churches around the square, but the only one still extant is St Nicholas.