Use your head, _______you’ll work out the problem.
—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.