Up to now, doctors ___ able to do very little to treat this disease.
Little Johnny felt the bag,curious to know what it________.
His explanation that he is at________loss what to do next doesn’t hold________water.
With economy getting worse,we have reached the point________we have to cut down our daily expenses.
To________the global financial crisis,our country has worked out a string of forceful measures over the past months.
The hurricane was________powerful that quite a lot of big trees in our town were knocked over last night.