It suddenly occurred to Anne that money couldn't __________ all that Tom had suffered in the past years.
Do you understand the theory ______?
If _____ for an explanation for an advanced camera, I would certainly find it difficult.
George would certainly have attended the meetings, _____.
He would have paid _____ for his fridge had the salesman insisted, because he really needed it.
______ they reached Oxford, they stopped the car on top of the hill.