Cars do cause us some health problems — in fact far more serious _______ than mobile phones do. A.one B.ones C.it D.those
Shortly after the traffic accident, two _______police were sent to the spot to keep order.
_____leaves the office last must close all the windows and the door.
It was not until he went abroad for further study______Li Ming realised the importance of English.
.When you finish reading the book you will have____better understanding of _______life.
—Would you please take this box along to the office for me? —_________