________ from the top of the tower, the south foot of the mountain is a sea of trees.
How pleasant the picture is to _______!
-What did you think of ______ president?-I didn’t care for him at first,but after ____ time I get to like him.
Last term our maths teacher set so difficult an examination problem _____ none of us worked out.
How pleased the detective was _____ what his customer told him!
Mrs. Brown was much disappointed to see the washing machine she had _____ went wrong again.