A woman escorts her daughter to take the 2020 General Certificate of Education Advanced Level Examination (GCE A/L Examination) in Colombo, Sri Lanka, Oct. 12, 2020.

Students wearing face masks prepare to take the 2020 General Certificate of Education Advanced Level Examination (GCE A/L Examination) in Colombo, Sri Lanka, Oct. 12, 2020.

Students wearing face masks prepare to take the 2020 General Certificate of Education Advanced Level Examination (GCE A/L Examination) in Colombo, Sri Lanka, Oct. 12, 2020. (Photos: Ajith Perera/Xinhua)

A traffic police officer assists students who are going to take the 2020 General Certificate of Education Advanced Level Examination (GCE A/L Examination) to cross a road, in Colombo, Sri Lanka, Oct. 12, 2020.