1. By ______, China has replaced the U.S. to become the world's largest auto market.
a. 2012
b. 2000
c. 2009
2. Currently, both the development of China's auto market and the changes in consumer demand for vehicles are _______.
a. unchanged
b. ever-increasing
c. decreased
3. It also has a huge agricultural vehicle market in ________ areas.
a. all
b. rural
c. urban
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