A student (R) attends a test on oral Chinese in the graduation test in Hradec Kralove, the Czech Republic, June 19, 2020. Two fourth-grade students in a Czech high school became the first in their country on Friday by taking a test in Chinese for their graduation exams. TO GO WITH "Feature: For first time, Czech students take test in Chinese for graduation exam" (Photos: Dana Kesnerova/Xinhua)

A student attends a test on oral Chinese in the graduation examination in Hradec Kralove, the Czech Republic, June 19, 2020. Two fourth-grade students in a Czech high school became the first in their country on Friday by taking a test in Chinese for their graduation exams. TO GO WITH "Feature: For first time, Czech students take test in Chinese for graduation exam"

A student prepares for a test on oral Chinese in the graduation test in Hradec Kralove, the Czech Republic, June 19, 2020. Two fourth-grade students in a Czech high school became the first in their country on Friday by taking a test in Chinese for their graduation exams. TO GO WITH "Feature: For first time, Czech students take test in Chinese for graduation exam"