In a sports team each player has a clear role,and there are few occasions members are confused or uncertain of their roles.
At one point I made up my mind to talk to Uncle Sam. Then I changed my mind,__________ that he could do nothing to help.
Fortunately, rescuers were able to gain __________ to the disaster-hit area soon enough.
The old professor told us that every part of the materials should be made use of __________ the station.
—How do you find the film? —It is not a feast, but __________,it is fairly amusing.
The shocking news made me realize__________ terrible problems we would face.