Parents tired from queuing sit on the ground outside the Middle School Attached to Northwestern Polytechnical University of Xi'an, Shanxi province, June 28, 2012. [Photo/CFP] 

A father (C) who comes at six o’clock in the morning sitting on a small folding chair outside the Middle School Attached to Northwestern Polytechnical University of Xi'an, Shanxi province, June 28, 2012. [Photo/CFP]