---Guess what! I have got the highest score in the final exam. ---- Great! You ______ worked very hard and put a lot of energy into it.
Though bought several years ago, the car is still in good .
Tom is the firsthe is wrong.
Every possible meansto prevent the air pollution, but the sky is not still clear.
,the wind died down and people began to appear on the street.
The number of the workers in this factory300, that is to say, it20%.