После окончания школы он начал рабо

После окончания школы он начал работать в конторе своего отца

Результаты (английский) 1:

After graduation he began working in his father's Office

Результаты (английский) 2:

After high school, he began working in his father's office

Результаты (английский) 3:

after high school, he started working in his father's office