Over the years, as new social or economic problems emerged, Congress assigned many agencies new and unanticipated program responsibilities.
Many agencies were assigned new program responsibilities by Congress.
Social or economic problems have never existed and cause zero problems.
A man on a raft.
A lady is walking
A girl is clapping her hands.
The people have been most useful.
The dancer is posing outdoors.
He was clean shaved and just came from the shower.