Languages/Grammar Concepts/Topic-Comment StructureTopic-Comment Structure3 languagesTopic-Comment Structure. 3 languages.Chinese话题句B1学习话题—说明结构，把话题提前，如“这本书我看过”“中文我学了三年”，突出谈论对象。YorubaÌtò Àlàyé àti Àkọ́léC1Cantonese主題評論結構B2