Warning bells ring on private tutors

As thousands of students sign up for lessons, parents are urged to study schools' credentials

Xu Jia, 21, a junior at the University of International Business and Economics, bought herself a suit over winter vacation because she had to look more mature for her part-time job.

Xu, a major in international trade, was employed by the Miyun county branch of a private tutoring center headquartered in the Haidian district.