A．It is the largest freshwater lake in the world.
B．It is the only one that is located entirely within the United States.
C．It is the southernmost, shallowest and smallest lake by volume.
D．It is the largest lake in the world in terms of surface area.
A．Polishing their application forms.
B．Broadening their options of colleges.
C．Benefiting from a low-cost school
D．Working hard to get a higher grade.