To be on the safe side, we should fill up the tank now, because we ______ run out of gas on the way.

       fired, your health care and other benefits would not be immediately cut off.

It is suggested that such a law ______.

—How's this pink evening dress? I wear it to the party _______ shall I choose that white one?—They both look beautiful, but I think your blue dress is suitable.

It is written clearly in the requirements that all passengers _______ check onto board thirty minutes before the plane takes off．