I first left the palace over two hours ago--I have an urgent assignment that I must attend.

Daneel has urgent assignments for us.

They walked quickly, as though in a hurry to complete some urgent assignment.

I'll be on my way back to Central with you, and once I land there, God knows what six urgent assignments will be waiting.

In support of this temporary but urgent assignment, he'd been given sysadmin privileges.

If we find out that one officer's been called away for a family crisis, and another's been given an urgent assignment?

My office calls and tells me I must go on an urgent assignment.

It was not an urgent assignment, only routine.

And I found myself with time to spare between urgent assignments chasing white rhino.

The United Nations has a more urgent assignment here than in Iraq.