distractors: though unless until
sentence: Through John's description,Bill's world was  broadened  and brightened by all the activities and colors of the outside world.The window overlooked a beautiful park with a lovely  1ake  ,John told Bill.Ducks played on the water  [MASK]  children sailed their model boats.And a fine view of the city skyline could be seen in the distance.As John described all these  in detail  ,Bill would close his eyes and  imagine  the picturesque scene.Bill was recovering  1ittle by 1ittle  .