It is dangerous to take ________ from rain under a tree especially during a summer rainstorm.
Professor Williams keeps telling his students that the future ________to the well-educated.
The water ________ cool when I jumped into the pool for morning exercise.
—What's that noise?—Oh,I forgot to tell you.The new machine ________.
—Why does the lake smell terrible?—Because large quantities of water ________.
His sister left home in 1998,and ________ since.