Convert sentence number 4 from "Повествовательные предложения" into indirect speech.

Решение:

Исходное предложение: "I can't explain this rule to you" said my classmate to me.

Преобразуем в косвенную речь, изменив местоимения и глаголы:

• "I" -> "he" (мой одноклассник)
• "you" -> "me" (мне)
• "can't explain" -> "couldn't explain" (прошедшее время)

Ответ: My classmate told me that he couldn't explain that rule to me.