Students attend the secondary school entrance examination amid COVID-19 pandemic in Tunisia, Tunis, June 29, 2020. (Photo by Adel Ezzine/Xinhua)

A student wearing a face shield attends the secondary school entrance examination amid COVID-19 pandemic in Tunisia, Tunis, June 29, 2020. (Photo by Adel Ezzine/Xinhua)

A student gets his body temperature checked before the secondary school entrance examination amid COVID-19 pandemic in Tunisia, Tunis, June 29, 2020. (Photo by Adel Ezzine/Xinhua)

A student reaches for sanitizer before the secondary school entrance examination amid COVID-19 pandemic in Tunisia, Tunis, June 29, 2020. (Photo by Adel Ezzine/Xinhua)