11. By August 1661 the roof had been completed, and was then whitened . 12. Peeling back layers of sediment, he was soon surrounded by whitened human skeletons. 13. Some streets were so whitened that it appeared a freak snowstorm had hit Bogota. 14. Studies show that patients who have whitened their teeth take better care of them. 15. There, he entered a large hut, which had a whitened skull inside. 16. Can the background be whitened or cleaned up? 17. Initially, the snow whitened grassy surfaces, which absorb less solar energy than pavements. 18. Like the finger counter-point, the nails are squared off and whitened underneath. 19. The stone walls were whitened and the doors and window frames painted in earth colours. 20. The hindwings and cilia are dark brown, whitened along the costa toward the base.
