---Where did you find the professor who made the speech yesterday?--- It was in the hall ____ the students often have a meeting.
________ themselves awake they sat on the floor and told each other stories.
A railway station is no place for a child ________ alone at night.
With much work ________unsettled,the newlyselected president will have a hard time.
He was sitting on the floor ________ by books.
The weather turned out to be fine yesterday. I ________ the trouble to carry my umbrella with me.