Passage 2Yet in its current 【dour】 mood, Europe risks almost ove

Passage 2
Yet in its current 【dour】 mood, Europe risks almost overlooking the 【revolutionary 】step forward it has taken in creating the world’s largest and wealthiest barrier—free market?and on a continent where, for centuries, economic battles have led to some of history’s bloodiest wars. Moreover, a failure to reinforce the single market by pushing forward with European integration could lead to an unraveling of what the internal market program has achieved, some observers say.
40.What did the writer worry about for Western Europe?
【正确答案】：The writer feared that making drastic changes in such a large and wealthy area might sharpen interest conflicts between EU member countries, if handled improperly, and arouse unexpected confusion.