After ______ series of unsuccessful attempts, he has finally passed ____ driving test.
| A．the , the | B．a, the | C．the , a | D．/ , a |
_______ I admit that there are still some problems about the traffic in this area, I don't mean that it can't be solved.
| A．While | B．Until | C．Unless | D．As |
--I'm going to the post office.
--_______you're there, can you get me some postcards?
| A．As | B．While | C．Because | D．If |
Are you paying now, or shall I ____ to you?
| A．book it down | B．book it in | C．book it up | D．book it out |
These winners from that key school are wise and diligent, actually there are _ ____students in that school
| A．many such | B．such many | C．so many | D．so much |
There is an increase of 16% in the consumption of tobacco______ the previous year.
| A．over | B．than | C．to | D．then |