"I would not have asked had it not been a matter of the greatest urgency."
I come to you with a matter of the greatest urgency!
This had to be a matter of the greatest urgency.
"A matter of the greatest urgency, an affair of state."
After three minutes, interrupt us with the greatest possible urgency, and get me off the airplane.
I have in hand another matter or two of the greatest urgency, requiring my attention first.
He said it were the matter of greatest urgency.
Getting services restored, youngsters back to school and their parents back to work was of the greatest urgency.
Ma then informed Trinket that he had come on a matter of the greatest urgency.
"But it isn't of the greatest urgency for us to discuss them right now."