The passengers’ (乘客) families were to keep calm as soon as they heard the bad news.
—Is _______ here ? —Bob is not here.
—What are you going to give your mother for her birthday? —I’m not sure. But I’ll buy her _______.
— Who will go to the _____ for teeth cleaning with you, Mark? — My father.
If you play sports ______a living, your job will sometimes be very dangerous. A. for B. at C. by
How aboutto your friends? A. talking B. talk C. to talk