40. Прочитав много книг по этому во

40. Прочитав много книг по этому вопросу, он смог сделать интересный доклад

Результаты (английский) 1:

40. having read many books on the subject, he could make an interesting report

Результаты (английский) 2:

40. After reading a lot of books on the subject, he was able to make an interesting report

Результаты (английский) 3:

40. After reading many books on the subject, he was able to make an interesting report