4. Он так никогда и не узнал причин

4. Он так никогда и не узнал причину, по которой его отец отказался возбуждать иск. 5. Агент должен передать всю выручку от сделки своему принципалу, который уполномочил его на эту сделку.

Результаты (английский) 1:

4. He never learned the reason his father has refused to sue. 5. the agent must pass all revenues derived from its principal transactions, which authorized it to this deal.

Результаты (английский) 2:

4. He never learned the reason for which his father refused to sue. 5. The agent has to pass all the proceeds from the deal to his principal, who commissioned him for this deal.

Результаты (английский) 3:

4. he never found out the reason why his father had refused to take action. 5. the agent shall give all the proceeds from the sale of his принципалу, which authorized him to this deal.