Question

____________ the classroom, he found all the pupils sitting at their desks and revising their homework.
Помогите, хочу разобраться. К какому разделу грамматики относится? правильный ответ, и почему остальные не подходят.

Answer 1

In the classroom это тема артикли

Answer 2

Having come into the classroom, he found all the pupils sitting at their desks and revising their homework.