Li Gang was required to apologize the people present at the meeting __ what he had done.
A study shows that students living in non-smoking dormitories are less likely to ________ the habit of smoking.
As we all know, ______ medical examination will help us find out health problems as early as possible.
Ann ______ here any more.She left last month.
The conference aims to develop business and let people think about ______ they can have a positive influence on the planet.
The traffic rule says young children under the age of four and less than 40 pounds must be in a child safety seat.