______ the students found the soldier’s idea interesting, the system was too difficult to be of practical use.
He_______ drawing.
There is _______ useful book on the desk.
--- We need three single rooms for the first week in June. --- .The hotel’s not busy then.
What surprised me was not what he said but _________ he said it.
In the reading room, we found her seated at a desk, her attention ____ on a novel.