Tian'anmen Square is the largest square in the world, which covers a total area of 440,000 square meters, 880 meters north to south, and 500 meters east to west.
—Hurry up! Alice and Sue are waiting for you at the school gate. —Oh! I thought they________ without me.
You have to be accurate in this job,because a small mistake can make a big ________.
—Mary is a(n)________ painter.—So she is. She won a national award at the age of fifteen.
—How about coming to see me in the office tomorrow afternoon?—________,but I have to meet a guest at the airport.
In this institution a medal together with a prize of certain sum of money _______ gains success in science and technology every two years.