— Do you think it's a good idea to make friends with your students?—________, I do. I think it's a great idea.
I ______ the novel by the time you ______ back next week.
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.