________by a group of children,the old man was delighted.
Shortly after the accident, _____ police were sent to the spot to keep order.
We already have ______ pencils, but we need two ______ pens.
Jim is ______ person, and everyone is willing to be ______ with him.
By all _______, you must try every _______ to help him.
In fact, _______ one cause that leads to the problem.