Помогите с темой, не могу понять!
Задание -
Перефразируйте предложения:

1) John heard his sister. She was talking loudly in the room.
2) She dropped the cup on the floor and broke it. I saw it.
3) I heard the door of the entrance hall open and close softly.
4) In the room he could see a man sitting in an old armchair. 
Спасибо заранее огромное!

1) John heard his sister talking loudly in the room. 2) I saw her drop the cup on the floor and break it. 3) I heard the door of the entrance hall which was opened and closed softly. 4) In the room he could see a man who was sitting in an old armchair.