I was just about to go out last night ______ the telephone rang.
The workers agreed to ________ the strike if the company would satisfy their demands.
These articles ________ the problems of the modern world, including race relations and community development.
Urban crowdedness would be greatly relieved if fares ________ on public transport were more reasonable.
A survey showed that women in Hong Kong were more romantic, 34.3 percent of them __________ that love mattered the most.
Another truly wonderful aspect of the Internet is the way _______ to build social ties.