—I wonder why he has been acting so strangely these days.—Recent pressure at work may ____ his behavior.
The poor had to ______ a living.
Without facts, we can't form a worthwhile opinion, for we need to have factual knowledge ______ our thinking.
With the government's aid, those ______ by the earth-quake have moved to the new settlement.
Mrs White showed her students some old maps ______ from the library.
We have lost two of our best players, but we're :__________ winning.