Meet the "Tutor Kings and Queens" "If you want to be a top tutor, it definitely helps if you are young and attractive. Students look at your appearance," said Kelly Mok, 26, a "tutor queen" at King's Glory, one of Hong Kong's largest tutorial establishments. Richard Eng from Beacon College, a former secondary school teacher, is often credited with being the first of Hong Kong's "star tutors". "In school all the teachers look the same, there's no excitement," he said. The celebrity tutor phenomenon is a result of the huge growth in outofschool tutoring in Asia. It is fuelled by highly pressured examination systems and ambitious parents wanting their children to secure places at top universities and highstatus secondary schools. In societies where success _ good exam results, parental anxiety converts into a "steady stream of revenue " for tutoring establishments, according to a study by the Asian Development Bank (ADB). The tutoring industry, or "shadow education" as the ADB calls it, has become very widespread in Asia, fed by the growth in universities and the rising proportion of school leavers aiming for university. Hong Kong University's professor Mark Bray, one of the authors of the ADB study, said a staggering 72% of finalyear school students in Hong Kong now go to private tutors. It's not just Hong Kong. Tutoring has "spread and intensified  in Asia and become more commercialized," said Professor Bray. In South Korea, 90% of primary school children attend such classes. In China, New Oriental Education and Technology has grown to become one of the largest tutoring schools in Asia with around 2.4 million students this year. In South Korea, Thailand, Sri Lanka and India, tutorial schools use star tutors to attract even more students. What Professor Bray says in this passage means that   _  .
the number of school leavers is increasing tutoring may improve achievement for individual students star tutors have attracted 2.4 million students more and more students in Asia go to private tutors