The challenge is not one of expansion. _______, the rapid growth in enrollment over the last 40 years has come to an end.

Toaworker,________fromthepointofviewofsocietyisnecessarylaborisfromhisownpointofviewvoluntaryplay.

To a worker, ________ from the point of view of society is necessary labor is from his own point of view voluntary play.

Sofarscientistshaveonlyacquired________understandingofthephysicalprocessesthatcauseearthquakes.

—You were brave enough to raise objections at the meeting.

— Well, now I regret ________ that.