9. There are many students of Grade Three reading in the reading room, most of _________ with their heads buried in their reference books and notebooks.
The doctor _________ him to give up smoking but he would not listen.
I know that our geologists think highly of his researches in the ______
The question ______ last night was of great importance.
I heard a soft _______ at the door. When I looked up, I found it was Mary.
Last night he left his bike outside and had it_______.