Когда Достоевскому было 16 лет, его

Когда Достоевскому было 16 лет, его мать умерла[23] от чахотки, и отец отправил старших сыновей, Михаила и Фёдора, в пансион К. Ф. Костомарова[24] в Петербурге для подготовки к поступлению в Главное инженерное училище[25].

Результаты (английский) 1:

When Dostoevsky was 16 years old, his mother died [23] from phthisis, and father sent senior sons, Mikhail and Fedor, k. f. guesthouse Kostomarov [24] in St. Petersburg to prepare for entrance to the main engineering school [25].

Результаты (английский) 2:

When Dostoevsky was 16 years old, his mother died [23] of tuberculosis, and his father sent eldest sons, Michael and Theodore, the guesthouse KF Kostomarov [24] in St. Petersburg to prepare to enter the Main Engineering School. [25]

Результаты (английский) 3:

when dostoevsky was 16 years old, his mother died of consumption [23], and my father sent senior sons, michael and fedor, a boarding house. s. костомарова [24] in st. petersburg to prepare to enter the engineering college [25].