With the help of his friends, he has _____a good business over the years.

After the heavy mudslide happened in Sichuan, hundreds of newspaper reporters were sent to ____ the natural disaster.

—Will you be ______ this evening, Mary?—That depends. I am afraid I will be with my manager discussing a plan.

In manufacturing, cheaper materials are constantly being        for the better, more expensive kind.

The American’s long-time painful work finally        , for he broke the Guinness World Record for Hula-hoop Spinning(转呼啦圈).