The problem of carbon emission ____ at Copenhagen Summit has aroused the public’s wide concern.
People complain that decisions to approve or deny a permit are often ____ rather than based on fixed criteria.
---When did you last hear ____ Jay?---He phoned me this morning, and we agreed ____ a time and place to meet.
It was with great excitement one morning in July ____ the young man got the news that he was admitted to the university of his choice.
As I know, there is ____ car in this neighborhood.
Dr. Peter Spence, ____ headmaster of the school, told us, “____ fifth of pupils here go to study at Oxford and Cambridge.”