Experts found a large quantity of wall paintings, some of them_____ the Han Dynasty.
Jack as well as the other students who ______ sent abroad by the government ______ brought up in a small town.
—Do you mind if I close the window? —____.We should let in more fresh air.
— Hi, Tom.Any idea where Mary is? .一 She ______in the reading room.I saw her there just now.
Mr. Lee, who _______ as a carpenter for over 10 years, is now a very famous statesman in this country.
— Can I use the telephone on the table, sir?一 Under no circumstances ____to use the telephone in the office for personal affairs.