It is considered no use _________ against the deadly disease.
The number of the audience, ______ we had expected, was a thousand.
Having been born on the earth, we had no choice but ________ hospitality it offered.
The enemy troop could hardly make any advance, and ________ could they fall back.
An online survey at sina.com suggested more than four in five interviewers _______the Microsoft move would not be effective _________ software piracy.
Beginning college is exciting:many of us can be easily overwhelmed by _______ details of running ________ well-balanced life.