600点 文法問題 接続・前置詞 responsible for TOEIC Part 5 練習問題 P5_449 The HR director is responsible ------- training new employees. A. to B. in C. of D. for ✅ 正解：for ✅ 正解根拠:be responsible for。 🎯 秒解きポイント:responsible=for。 文法問題 接続・前置詞 responsible for