Ⅱ.补全信息
选择正确选项填入空白处，补全所给句子提供的信息：
A．as it used to be
B．If you look up
C．Given that the theme of the Expo was to promote cultural exchange and strengthen mutual cooperation between the countries along the Silk Road
D. when they saw the oasis of Dunhuang ahead of them
1．You can only imagine how travelers felt ________．
2．In the Ming Dynasty，trade routes changed and Dunhuang was not as prosperous ________．
3．________，you can see the paintings and other artworks that are testimony to how the Silk Road brought East and West together.
4．________，Dunhuang was the ideal place.
[答案] 1－4 DABC
