Water, which seems so simple and common, is_________makes life possible.
—Daddy, can you buy me a new MP3 when you go to Beijing? —You ______ get one if you are admitted to a key middle school.
My parents kept their _____and took me to Shanghai, where we had ____.
Every time the father comes into his room, the boy pretends ______ earnestly.
It is a pity that none of the ______ stopped ______ the poor man lying there, begging.
I went to the newly-built super-market and found there was nothing worth_____.