" What do you feel has been China's biggest achievement over the past five years? What's the most notable change you've observed? China has achieved much in many aspects over the last five yearsOver the last 21 years, South Korea开博体育n teacher Cho Sung-hye has contributed much to the friendship between the people of her country and ChinaA remarkable South Korean teacher took up residence in Hefei, Anhui province, at the urging of her young son and never looked back"Nowadays all the primary schools in my country have made Chinese-language courses available to students," said Cho, who was believed by some local media to have given the strongest push to the achievementIt was the 开博体育first primary school in the country to do so"At the peak, I had 21 relatives living here, and there are still 12 of them now," Cho said