I once watched _____ one-act play, which was played by ___ 11-year-old boy.
At the meeting they discussed three different ______ to the study of mathematics.
The appearance of Yao Ming has ______ the fans of a sure victory for the Huston Rocket in the coming NBA contest.
Everything ______ into consideration,they ought to have another chance.
Only then ______ how much damage had been caused.
—How long will you be staying? —I don't know.______ .