People are encouraged to speak openly, but careless words are ____ to hurt others’ feelings.

However ________, the native people do have something in common.

The wings of the plane, which stretched out for 80 feet, were ______ of its body.

When I get puzzled about some difficult problems, my teacher always encourages me and says, “Take it _________ .”

Chinese farmers are mostly living a simple and _____ life as it is today.