Please excuse me _______ your letter by mistake.
I want to sell the house,but ________I can't bear the thought of moving.
The population of this city,forty percent of which________,________20% in the last three years.
After the experiment the plant is ________ it was before.
Football games are really ________with not only the young but also the old.
-________?-He's about your height,sort of heavy,with blue eyes.