Must I turn off the gas after cooking—Of course.You can never be ________careful with that.

It was ________ more information that I surfed the Internet, not for fun

Nearly 200 people entered the area ______ to minediamonds in 2000, and eventually had to be driven off by the police.

The river is about three meters ________.–So it must be dangerous to swim in it.

Professor Williams keeps telling his students that the future _____ to the well-educated[ ]