haha, pick either one! they will understand you~ hehe. 'hua yu/zhong wen' basically means chinese language. if it was me i will chose the sentence with 'hua yu' because i usually refer the chinese language as 'hua yu' (:
went to search for my chinese dictionary! haha
guo yu: the common language that the people of the country use.
so that's why i think 'guo yu' isn't suitable. (:




























