A．Wal-Mart shouldn't be responsible for the ruin of the vision.
B．The city authority sets out to plan buildings.
C．The surroundings of the ancient site are dirty.
D．The historic interest is well preserved.

A．Wal-Mart would cause fierce competition with local stores.
B．As the world's biggest retailer, Wal-Mart attracts the Mexican customers with superb service.
C．Stores are forbidden to open around the Pyramid of the Sun.
D．The opening of Wal-Mart muses controversy in Mexico.