860点 文法問題 品詞問題 officially TOEIC Part 5 練習問題 P5_621 The CEO has ------- announced his retirement. A. officially's B. officialize C. officially D. officials ✅ 正解:officially ✅ 正解根拠:has と announced の間で副詞 officially。 🎯 秒解きポイント:has+副詞+過去分詞。 文法問題 品詞問題 officially