An increasing number of mainland Chinese pupils are taking Hong Kong’s university entrance exams as a step towards more diverse opportunities in higher education, with at least two achieving flying colours as private candidates this year. Leslie Wang Ziqi, 18, a student in Shenzhen, switched from the National Higher Education Entrance Examination or gaokao, mainland China’s university entrance exam, to the Diploma of Secondary Education (DSE), as a private candidate at the beginning of his final...