The valley was so deep that it had been ten seconds _________the stone feel off to the bottom.A since B before C when D until
.The ____ boy was last seen ______ by the lake. A missing, playing B.missing, play C. missed, played D.missed , to play
.—There is likely to be heavy rain tomorrow. —_______, we’ll have to change the plan for the outgoing.
People have realized that they should go on _____ balanced diet and do _____ exercise every day.
._____ in the newspaper that there is another good harvest this year.
How much do you think that vase _____?