——The research on the new bird flu virus vaccine is challenging and demanding. Who do you think can do the job? ——____ Tom have a try?
The incomes of skilled workers went up., unskilled workers saw their earnings fall.
“Only two centimeters higher,break the world record.” encouraged the coach.
Have you read the book, concerning the story of Song Dandan?
When asked whether he could come over and have dinner with us,.
No one believed his reason for being latehe was caught in a traffic jam,made him embarrassed.