Students wearing face masks line up to enter Tseung Kwan O Government Secondary School, Hong Kong, for the Hong Kong Diploma of Secondary Education (HKDSE) examinations, April 24, 2020. The HKDSE, postponed due to the COVID-19 outbreak, kicked off on Friday. (CALVIN NG/CHINA DAILY)
Students line up to enter Tseung Kwan O Government Secondary School, Hong Kong, for the Hong Kong Diploma of Secondary Education examinations, April 24, 2020. (CALVIN NG/CHINA DAILY)
A student disinfects his hands before entering Tseung Kwan O Government Secondary School, Hong Kong, for the Hong Kong Diploma of Secondary Education examinations, April 24, 2020. (CALVIN NG/CHINA DAILY)
Students wearing face masks wait to enter the examination hall at Tseung Kwan O Government Secondary School, Hong Kong, to take the Hong Kong Diploma of Secondary Education examinations, April 24, 2020. (CALVIN NG/CHINA DAILY)
A student (left) has her documents checked before sitting for the Hong Kong Diploma of Secondary Education examinations, in Hong Kong, on April 24, 2020. (JEROME FAVRE / POOL / AFP)
Candidates taking the Hong Kong Diploma of Secondary Education examination sit at least 1.8 meters apart at an examination hall, Hong Kong, on April 24, 2020. (JEROME FAVRE / POOL / AFP)
An invigilator wearing protective head shield and gloves distributes exam papers to students sitting for the Hong Kong Diploma of Secondary Education examination, in Hong Kong, on April 24, 2020. (JEROME FAVRE / POOL / AFP)
A candidate wearing a face mask disinfects her hands at St. Joseph's College, before the start of the Hong Kong Diploma of Secondary Education examination, Hong Kong, on April 24, 2020. (PHOTO PROVIDED TO CHINA DAILY)
An invigilator distributes hand sanitizers to candidates before the start of the Hong Kong Diploma of Secondary Education examinations at St. Joseph's College in Hong Kong, April 24, 2020. (PHOTO PROVIDED TO CHINA DAILY)
Candidates taking the Hong Kong Diploma of Secondary Education examination sit at least 1.8 meters apart at the examination hall at St. Joseph's College, in Hong Kong, on April 24, 2020. (PHOTO PROVIDED TO CHINA DAILY)