а как это в прошедшем времени по англ.

Helen WAS PREPARING dinner while George
WAS WORKING in the garden when she
HEARD the front doorbell ring. When she
OPENED the door she SAW
a beautiful bouquet of flowers with her name on it. She
HAD TOTALLY FORGOTTEN that it was her birthday.
People WERE CHATTING noisily, music WAS POURING out of the jukebox and fhe bar staff WERE WORKING
hard. Nothing in the old pub CHANGED
even though Simon HAD NOT VISITED
the place for ten years. Suddenly he NOTICED a familiar face in the corner. His brother, with whom he HAD BEEN ARGUING all those years
before, DECIDED to meet him after all.
Может, в паре мест и могут быть варианты, Present Perfect здесь точно быть не может. Так же, как двойного отрицания.

was preparing, was working, heard. opened, saw, ..допишу..

Helen 1)....(was preparing) dinner while George
2)....(was working) in the garden when she
3)....(heard) the front doorbell ring. When she
4)....(opened) the door she 5)....(saw)
a beautiful bouquet of flowers with her name on it. She
6)....(totally forgot) that it was her birthday.
People 1)....(were chatting) noisily, music 2)....
(was pouring) out of the jukebox and The bar staff 3)....
(was\were working) hard. Nothing in the old pub 4) ...
(didn't change) even though Simon 5)....(had not visited)
the place for ten years. Suddenly he 6)....
(noticed) a familiar face in the corner. His brother, with
whom he 7) ...(had been arguing) all those years
before, 8)....(decided) to meet him after all

1) was preparing
2) was working
3) heard
4) opened
5) saw
6) has totally forgotten
1) were chatting
2) was pouring
3) worked hard
4) has not changed
5) has not visited
6) noticed
7) was argued
8) decided

Все что вы написали-это не правильно. Я учитель английского языка 15-летнего стажа, но то что вы написали в дет. саду только изучать!! Честно!!!! Будьте внимательней... ответ внизу

1) was preparing
2) was working
3) heard
4) opened
5) saw
6) has totally forgotten
1) were chatting
2) was pouring
3) worked hard
4) has not changed
5) has not visited
6) noticed
7) was argued
8) decid

-БЛАГОДАРНОСТЬ??
-Да ладно... для будущего поколения... ничего не жалко!! На здоровье!!!

Могу поспорить что это Голицынский! !
http://www.spishy.ru/homework/c24/i405