860点 文法問題 接続・前置詞 due to TOEIC Part 5 練習問題 P5_609 The product was discontinued ------- the lack of demand. A. although B. therefore C. due to D. while ✅ 正解：due to ✅ 正解根拠:後ろが名詞句なので前置詞 due to。 🎯 秒解きポイント:名詞=due to/owing to/because of。 文法問題 接続・前置詞 due to