1 . The third annual National Products Exhibition was held at the     1     in Guangzhou. This year a total of     2    provinces participated in the event. The products on show included fruits from Xinjiang, tea sets from Jiangsu and the latest     3     from Shanghai. The exhibition hosted a special display of wonderful silks of Zhejiang. These silks are     4    yet strong enough to be made into any clothing. In the

    5    , there was also a video display showing how the     6     were made.