600点 文法問題 接続・前置詞 at location TOEIC Part 5 練習問題 P5_362 The company has been operating ------- this location for over 20 years. A. in B. for C. at D. to ✅ 正解:at ✅ 正解根拠:特定の場所は at。 🎯 秒解きポイント:location=at。 文法問題 接続・前置詞 at location