遅れたのはどうしてですか。
Respond to the situation using ～ても (Even if) to ask permission or state a fact. Minna No Nihongo Lesson 26 Renshuu B Answers
Lesson 26 typically covers:
Instructions: Change the verb in parentheses to ～たら. Minna No Nihongo Lesson 26 Renshuu B Answers