It is reported that a merchant ship sank fifty miles _______ the French coast.
His grandfather died ____ the wound that the enemy soldier had given him .and then his grand- mother died ____ hungry and cold.
The teacher is not only strict ____ his pupils but also strict ____ his own work.
Mary dropped in ____ Mr Smith, but he wasn' t at home, so she went to drop in ____ Mr Smith's office.
The worker can make chairs ____ wood, and also can make paper ____ wood.
The teacher is writing ____ a piece of chalk on the blackboard while the students are writing ____ink in exercise books.