Hong Kong Examinations Authority secretary Choi Chee-cheong says he cannot rule out the possibility that pupils who sat for A-level Chinese this year may have to take the exam again if an ICAC probe turns up evidence of wrongdoing. The Independent Commission Against Corruption is looking into a complaint in connection with vice-principal So Man-kau of Ma On Shan's Chiu Chow Association Secondary School over possible leaking of parts of some questions. The authority called in Mr So after an anonymous message appeared on the Internet reading: 'Why would they know that beancurd and tai chi arts are among the questions on the paper?' Mr So denies the allegation and says publicity surrounding it has disturbed A-level candidates. Mr Choi said he understood the investigation might affect pupils sitting for other subjects at A-level, 'but the person and the leaked questions mentioned, or hinted at, in the message sounded so real - we've got to do something about it'. Meanwhile, from this year, pupils will be able to check their A-level and Hong Kong Certificate of Education Examination results on the Internet with a personal log-on. The service will be of particular benefit to pupils studying on their own.