DifficultasFrenchis 國語站 題庫 3.05W 大中小設置文字大小 問題詳情： Difficult as French is ________, my elder brother goes all out for it. A. mastered B. to be mastered C. mastering D. to master 【回答】D知識點：非謂語動詞題型：選擇題 TAG標籤：DifficultasFrenchis #
