He walked up and down the room for half an hour, _______ behind him.
It was ________ experience that caused the company Robert ________ two years ago to get into trouble .
Had we assisted him , he ________ us a hand ________ today .
The car ________ on the way , consequently ________ .
How long do you suppose ______ we applied for the job ________ we had been trained .
The old man remained seated on the grass with his thoughts ________ the faith that the boy is worth ________ .