_____ is known to all, the age _______ children can go to school is seven.
A very beautiful scene spreads in front of the mountain, at the foot of which ______.
What was unexpected was that the disrespectable fellow ______ the old man.
I wonder whether the police ______ that lost child or not
Jerry, why ______ you leave your things on the floor like this?
. When Jack reached the station the train ______ for ten minutes.