The mother was nervous because she had not her son who was away at a boarding school.
| A．heard from | B．heard of | C．heard about | D．heard out |
The workers agreed to ________ the strike if the company would satisfy their demands.
| A．call for | B．call in | C．call off | D．call up |
These articles ________ the problems of the modern world, including race relations and community development.
| A．address | B．avoid | C．create | D．correct |
Urban crowdedness would be greatly relieved if fares ________ on public transport were more reasonable.
| A．offered | B．spent | C．paid | D．charged |
When people choose what college course to take, questions tend to be; what kind of
job am I going to get?
| A．不填，不填 | B．the，不填 | C．不填，a | D．the, the |
They soon realized that, , the situation would get worse.
| A．unless dealing with it carefully | B．if not carefully dealing with it |
| C．unless carefully dealt with | D．if dealt not carefully with |