According to the story, the game of chess was invented by an ______.

A．To praise the tourism policy of the EU.
B．To introduce tourism conditions in the EU.
C．To encourage us to travel across Europe.
D．To suggest the world be melted into one like the EU.

A．The Euro is the only money used in the EU now.
B．Chinese has become an official language in Europe.
C．An increasing number of Chinese tend to travel to Europe.
D．It is always necessary to unite many countries into one,