Мальчик начал работать на заводе, г

Мальчик начал работать на заводе, где его отец проработал двадцать лет.

Результаты (английский) 1:

The boy started working at the plant where his father worked for twenty years.

Результаты (английский) 2:

The boy began to work in a factory where his father worked for twenty years.

Результаты (английский) 3:

The boy began to work at the factory, where his father has been running for twenty years.