Visitors walk inside the China Pavilion at the Shanghai World Expo site April 23, 2010. The expo started trial operations on Tuesday with the participation of about 70 percent of the pavilions, Xinhua News Agency reported. [Agencies] [#page#] A
An actress performs stunts (特技)during the stage show CHA at the Entertainment Hall at the World Expo Park in Shanghai, east China, on May 1, 2010. As the spectacular stage show designed exclusively for World Expo, CHA takes Chinese tea as its theme,