题目内容：

阅读下面材料，在空白处填入适当的内容（1个单词）或括号内单词的正确形式。将答案填写在答题卡的相应位置。

A bridge is a structure built 1.(cross) a river, road, valley and so on. Designs of bridges differ depending 2. the function of the bridge and the nature of the land where the bridge is constructed.

The first bridges 3.(make) of wooden logs. Most of these early bridges were poorly built and could rarely support heavy weights. It was this inadequacy that 4.(lead) to the development of better bridges. The arch was first used for bridges by the Roman Empire, some of 5. still stand today.

The oldest surviving arch stone bridge in China is the Zhaozhou Bridge, 6.date) back to the Sui Dynasty. The great bridge expert Mao Yisheng once said that 1300 years was enough to prove the completeness of its entire structure. The bridge is complex yet elegantly constructed. Taking in the whole view, you will find it a single-arch bridge. However, it is actually a vertical combination of twenty-eight 7.arch). The two smaller spans(桥拱) in the shoulders of the bridge is a 8.create) invention in the history of the bridge construction, giving the stone bridge a 9.(fair) pretty design.

This bridge will continue to stand there not only as a tourist attraction 10. a treasure for everyone to enjoy.