Dear Siu Wa, Do your very best to finish the whole thing before the end of May. Give Prof. Chen JH and Prof. Kao copies in June and take the oral in late July or early August. This is all assuming that Prof. Chen and Kao will be in Hong Kong in late July or early Aug. Very few HUMA teachers will be around for the whole summer. So you have to find out Prof. Chen's and Kao's summer schedule before planning the date for oral.